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7th Grade Science
2 - Worksheet Questions
| Question | Answer |
|---|---|
| which of the following is NOT a characteristic of all organisms | Fur |
| homeostasis | the regulation of an organism's internal environmental |
| Blinking, sweating, and shivering are all examples of | regulation |
| 'Development' is best described as | changes or transformations |
| Asexual reproduction | produces offspring that are genetically identical to the parent |
| which of the following is the definition of 'life span'? | the time it takes for an organism to complete its life cycle |
| which of the following statements is true | the time an organism spends in each stage of its life cycle varies |
| which of the following is the definition of 'life cycle'? | the developmental stages that occur during an organism's lifetime |
| which of the following statements is true? | all statements are true |
| which of the following statements is true? | all statements are true |
| which term best describes a process by which an organism develops after birth? | metamorphosis |
| which type of insect undergoes complete metamorphosis | butterflies |
| who of the following organisms undergo incomplete metamorphosis | grasshoppers |
| which phase clearly distinguishes between complete and incomplete metamorphosis | pupa |
| in which group of organisms is metamorphosis most common? | insects |
| which of the following is an example of an organism responding to an external stimulus | a dog barks at the mail carrier |
| which of the following would be considered a good, or positive, external stimulus? | a delicious-smelling pizza |
| what is an external stimulus | a change in the environment that causes an organism to respond |
| what type of response would you expect when a frightened dog hears a loud thunder clap? | the dog runs and hides |
| which of the following is an example of an organism responding to a bad, or negative, stimulus? | a kitten spitting out a bite of pickle |
| which of the following variables do our bodies regulate: | all answers are correct |
| the words homeo and stasis mean: | similar and stable |
| control systems that tend to reduce the difference between the desired value of variable and the observed value are called | negative feedback systems or error correction systems |
| homeostasis is maintained through control systems. Temperature in our brain monitor body temperature. if it starts rising, moving away from its this activates an tissue or organ that will help you start sweating to bring your temperature back to normal. | sensors, set point, effector |
| Moduel 2 | |
| which of the following is a part of cell theory | all of the answers are correct |
| if cells are the basic units of life, which of the following is true? | all of the answers are correct |
| what do we call the idea that life can develop from non-living matter? | spontaneous generation |
| what do we call the basic generalizations that are accepted by modern science about cells? | cell theory |
| if all cells are created by other living cells, which of the following is true? | all of the answers are correct |
| the purpose of is to provide separation and compartmentalization of process in eukaroytes. | organelles |
| which of the following describes prokaryotic DNA | it is circular |
| which is a membrane-bound organelle? | all answers are correct |
| what do both prokaryotes and eukaryotes have that is involved in translation? | ribosomes |
| what do all eukaryotes have that prokaryotes do not? | nucleus |
| large central vacuoles are only found in cells. | plant |
| plants are while animals are | autotrophs, heterotrophs |
| this double-membraned organelle is the site of photosynthesis in plant cells: | chloroplast |
| plant cells do not contain. | centrosomes |
| which of these structures help plant cells maintain their rectangular shape? | Cell Wall |
| what happens to the solar light energy in photosynthesis? | some of it is transformed into chemical energy stored in a sugar molecule. |
| what are the reactants of photosynthesis? | carbon dioxide, water and sunlight |
| which statement correctly describes what photosynthesis accomplishes? | carbon dioxide and water are assembled into food molecules |
| what is the role of the pigment molecule in photosynthesis? | to absorb light energy |
| which of the following is the correct equation for photosynthesis? | 6CO2 + 6H2 O C6 H12 O6 + 6O2 |
| what does photosynthesis provide that serves as the starting point for cellular respiration? | oxygen and glucose |
| what does ATP stand for? | Adenosine triphosphate |
| what does cellular respiration begin with? | One molecule of glucose and oxygen |
| what is a catabolic reaction? | the breaking down of large molecules into smaller ones. |
| what is the last stage in cellular respiration? | Electron transport chain |
| which of the following does not take place in the nucleus? | all of these take place in the nucleus |
| where is the starting point of ribosome synthesis? | nucleolus |
| which of the following helps maintain the shape of the nucleus? | nuclear lamina |
| the is a double membrane that shields the nucleus | nuclear envelope |
| how do large proteins enter the nucleus? | all of these |
| which is the first step in cellular respiration? | Glycolysis |
| How does cytoplasm hold a cell's internal components in place? | The cytoplasm is filled with proteins that provide support |
| what are ribosomes? | Tiny structures that make proteins |
| which is not one of the internal components of a cell? | Glycolysis |
| which is not a function of the cytoplasm? | Make proteins |
| a mitochondrion is | a double membraned organelle lying within our body's cytoplasm |
| what are mitochondria once suspected of being? | bacteria |
| Mitochondria are found within: | Eukaryotic cells |
| the energy currency that mitochondria produce is known as: | ATP |
| what is the TCA cycle? | all of the answers are correct |
| why does the cell membrane need to be fluid? | Maintaining a fluid cell membrane allows the passage of materials across the membrane |
| what are three ways that a cell membrane aids in maintaining homeostasis? | Maintaining a fluid phospholipid structure, regulating osmosis and maintaining specific concentrations of ions |
| what is homeostasis? | the set of internal conditions in which an organism functions at its best |
| what is osmosis? | osmosis is the tendency of water molecules to move from areas of greater concentration to areas of lower concentration |
| the cell membrane | is said to have two layers of phospholipids and resembles an ice cream sandwich |
| Moduel 3 | |
| which of the following is an example of a life process performed on the cellular level? | Performing photosynthesis to make sugar using solar energy |
| which of the following is an example of reproduction at the organization level? | a lioness has a litter of cubs |
| which of the following describes a change to DNA? | mutation |
| which of the following is a way that a cell is organized? | an alligator's have organelles that perform specific functions |
| which of the following is not one of the basic processes of every living thing? | perform photosynthesis |
| Unicellular organisms are made of | one cell |
| the whip-like tails of Euglena are known as | flagella |
| Unicellular organisms are able to | all of these are correct |
| Unicellular organisms can be | all of these are correct |
| Unicellular organisms can be seen by the naked eye | some |
| which of the following statements about the tree of life and the domain Bacteria is true? | Bacteria are in a single domain that contains unicellular prokaryotes that are not Archaea |
| the average length of a bacterial cell is | 1 micron |
| which of the following statements is true about bacteria in the human body | beneficial bacteria can boost the immune system |
| how do the metabolic abilities of microbes promote its growth? | diverse metabolic abilities allow microbes to colonize many environments |
| which of the following abilities of microbes promote its growth is false? | all bacteria grow at the same rate |
| protists have what type of cells? | Eukaryotic |
| Animal-like protists that are considered the earliest form of heterotrophic organisms are known as what? | Protozoa |
| the jelly-like liquid inside an amoeba is called what? | Cytoplasm |
| Diatoms have a glass-like casing surrounding the cell made of what | Silica |
| Whip-like extensions used to propel an organism through its aquatic environment are also known as as what? | Flagella |
| which eukaryotic kingdom is made of both unicellular and multicellular organisms? | Protista |
| which of these kingdoms has cells that contain chloroplasts? | Plantae |
| which cells have cell walls? | Fungal cells, and some protist cells |
| evolutionary relationships among the Domains have been determined primarily by comparing | ribosomal RNA |
| what is the difference between a multicellular plant and a multicellular, plant-like protist such as kelp? | only the plant's cells are specialized |
| Moduel 4 | |
| which two factors are the most important in determining terrestrial biomes? | Temperature and precipitation |
| which of the aquatic biomes contains brackish water? | Estuaries |
| which of the following biomes could be found in the United States? | All are correct |
| which of the following biomes will never experience cold temperatures? | Tropical Rainforest |
| temperate grasslands and savannas are both grasslands, so how can you tell them apart | only savannas are located in tropical regions |
| a hurricane hit an island where the only trees were palm trees. What might a biologist say about the ecosystem after the hurricane? | Given that there was little diversity, the ecosystem will remain unstable for some time |
| Dr. Smith is studying algae. Would she consider ponds in her research on ecological diversity? Why or why not? | yes, because both aquatic and terrestrial ecosystems are considered when studying ecological diversity |
| We are only aware of 10,000 species of birds. Given that fact, where would an ornithologist most likely concentrate their research to discover new bird species? | South American rain forests |
| what might be the reaction of a botanist who discovered a new plant in the Saharan desert? Why would they react that way? | They would be happy to find biodiversity because that leads to ecosystem stability |
| what is the difference between species diversity and genetic diversity? | Species diversity looks at the amount of different species in a place, while genetic diversity looks at how genes vary within a species |
| which of the following is true about all environments? | An environment includes factors such as temperature, light, water, air, soil, and nutrients that surround an organism |
| which concept best describes ecology? | all concepts describe ecology |
| the lowest, most basic level at which ecology is studied is: | the organismal level |
| what is an ecosystem? | the populations of all species and all abiotic factors within a geographical area |
| what is a population? | All of the individual organisms belonging to the same species within a geographical area |
| which of these is not an example of a biotic factor in an ecosystem? | Cloud cover |
| Biotic factors that affect other organisms in an ecosystem include all of the following EXCEPT: | Volcanic eruptions |
| what is a biotic factor in an ecosystem? | Animals, plants and microorganisms |
| which of these events in an ecosystem is not a biotic factor? | Rainfall filling up a pond |
| the carrying capacity of an ecosystem is | Affected by biotic and abiotic factors |
| which of these statements about abiotic factors is true? | Abiotic factors influence survival of biotic factors |
| The temperatures in Siberia are very cold, and only certain organisms can live in this harsh environment. This is an example of | a limiting abiotic factor |
| Abiotic factors | come in a variety of sizes and types |
| which is NOT an example of an abiotic factor? | Forest trees |
| which of these is an ecosystem? | a desert |
| what is a habitat? | An area that is suitable for a particular organism to live in |
| what is a niche? | the role that is played by a particular species in an ecosystem |
| which of the following is a density-independent factor that does not become more limiting as the population increases? | Flash food from a thunderstorm |
| why can cheetahs and lions coexist together on the plains of the Masai Mara National Reserve? | Different hunting styles allow them to fill different niches |
| which of the following is not an abiotic factor? | Amount of tree cover |
| Symbiotic relationships are different from regular species interactions because in a symbiotic relationship | the species live together |
| which is NOT one of the four mains types of symbiosis? | Animalism |
| which type of symbiosis describes two species living together by choice? | Facultative symbiosis |
| an example of defense symbiosis is | clownfish and sea anemones |
| competition symbiosis is when | one or both species is harmed |
| which statement accurately portrays Monarch and Viceroy butterflies? | their similar coloration is an example of Mullerian mimicry |
| what is the effect of predation or pray? | predation is a strong selective force for prey organisms to find ways to avoid being eaten |
| what type of mimicry occurs when a harmless animal mimics a dangerous or unpalatable animal | batesian mimicry |
| what is coevolution? | coevolution occurs when the fitness of two different species is tightly linked and these two species evolve in response to evolutionary changes in each other |
| what is the characteristic of animals that use chemicals for defense? | they rarely use camouflage as a defense |
| interspecific competition is the struggle for resources among | individuals of different species |
| the beautiful feathers of a peacock are an example of | ornamental features |
| an intraspecific competition, members of the same species might compete for | all answers are correct |
| intraspecific competition limits population size because | there are not enough resources for all the individuals |
| interspecific competition is the struggle for resources among | individuals of the same species |
| according to this graph, at which elevation is the population density of species A the highest? | 5,000 ft |
| what is the major difference between competitive exclusion and local extinction? | in competitive exclusion, a species is excluded from a local area but does not completely disappear, while in local extinction a species disappears completely from that area |
| what is an ecomorph? | a population that has recently evolved physical variations to adapt to a specific microenvironment |
| what is niche differentiation? | when more than one species with almost the same fundamental when more than one species with almost the same fundamental niche adapt to become specialists in different aspects of the fundamental niche |
| what is interspecific competition? | when two or more species in a community are competing for resources |
| Moduel 5 | |
| what is the carrying capacity of an environment? | the maximum number of any one organism it can hold |
| populations numbers of any one organism | rise and fall over periods of time |
| once a population reaches its environment's carrying compacity, what will happen to it? | its numbers will decrease |
| what is a limiting factor? | anything that keeps a population from continuing to grow |
| food, water and living space are all examples of | limiting factors |
| which of the following is an example of a limiting factor? | all of the answers are correct |
| what do we call something that restricts the number that can be supported in an environment? | limiting factor |
| which of the following best describes carrying capacity? | the maximum number of living organisms that an environment can support |
| which term is used to describe the community of animals, plants, and other organisms that live in and interact with a certain physical environment? | ecosystem |
| if a forest provides enough space for 10 bears to live, but only enough food and water to support two bears, what is the maximum carrying capacity of that forest? | 2 |
| using the graph below, explain why the deer population decreases after the wolf, population increases | the deer and wolf are in predator-prey relationship |
| what happens during exponential growth? | populations grow in a J-shaped curve until they reach carrying capacity |
| using the population graph of elk below, choose the best reason for the decrease in the elk population at two years | the population overshot its carrying capacity and the elk ran out of resources |
| using the graph below, explain what would happen to both populations if the predator population dramatically decreased | there would be a population crash for both populations |
| using the graph below explain what will happen to the rabbit population as their population density increases | the rabbit population will decrease because there are fewer rabbits being born |
| why are producers so important to an ecosystem? | they serve as a basis of all transfers of energy |
| what is a producer? | an organism that makes its own food |
| which of these is the main product of photosynthesis? | glucose |
| where are the shells of diatoms commonly used? | they are used in silver polish and toothpaste |
| what is the purpose of a plant stem? | it holds the plant upright, toward the sun |
| what is a secondary consumer? | an organism the hunts and kills other animals |
| what are animals that only eat one particular thing called? | specialists |
| primary consumers have special bacteria in their intestines to help them break down what? | cellulose |
| most food webs will never have more then what level of consumer? | quinary |
| which of these energy levels is directly above the producers? | herbivores |
| choose the country where the rate of decomposition will be fastest | mexico |
| our understanding of decomposers has allowed scientists to create | biodegradable plastics |
| identify the food that is created through the use of decomposers | bread |
| in the environment, how is the role of a decomposer different from that of a scavenger? | a decomposer breaks down dead organisms and feces into chemicals while a scavenger breaks down dead organisms without producing chemicals for soils |
| identify the decomposer | a mushroom |
| how many trophic levels does an omnivore feed on within an ecosystem? | omnivores feed at all trophic levels |
| what can a herbivore be categorized as? | a primary consumer |
| the prickly pear cactus is a producer. Which of the following organisms is a primary consumer of a prickly pear cactus? | Harris's Antelope Squirrel |
| in a typical ecosystem, what percentage of the energy produced by the autotrophs then consumed by the primary consumers will be passed along to the secondary consumers? | 1% |
| what constitutes a food web? | a combination of food chains that are interconnected to create a network of feeding relationships |
| which of the following quantifies the energy transferring from one organism to another? | an energy pyramid |
| which of the following trophic levels contains the lowest amount of original solar energy? | the very top |
| approximately how much original solar energy remains at the top or the energy pyramid? | 0.1% |
| where does much of solar energy go as it is passed along the energy pyramid? | it is lost to the environment |
| how much energy is transferred from a plant to an herbivore that eats it? | 10% |
| photosynthesis is a process in plants that uses and produces energy and oxygen. | sun, water, and carbon dioxide |
| legumes like are important because | soybeans; they take nitrogen gas and turn it into nutrients |
| in what ways can nitrogen gas be broken down into nutrients for plants? | lightning and special bacteria |
| which is not a way carbon can return to the atmosphere? | bacteria fixation |
| what is the largest reservoir for carbon on Earth? | limestone |
| what is a climax community? | the community that can be stably maintained after ecological succession is completed |
| after a glacier recedes, the moss and lichens that grow on the newly exposed rock surfaces are called what? | a pioneer community |
| the chapparal biome is characterized by what? | dense evergreen shrubs; mild, wet winters; and hot dry summers |
| a chapparal plant that is usually only seen in the first couple of years after a fire is also called what? | a fire-follower |
| which of the following events is likely to precede primary succession? | a volcanic eruption that creates a new island |
| which of the following characteristics is unique to meiosis? | reduction of the number of chromosomes in the cell by half |
| which of the following is true about meiosis and mitosis? | DNA replication precedes cell division |
| 1. In sexual reproduction, each parent provides genetic material for the formation of either an egg or a sperm cell. II. Gametes are produced by mitosis. III. If a sexually reproducing organism is diploid, the gametes are haploid. | I and III |
| what genetic advantage does sexual reproduction have over asexual reproduction? | genetic variations are possible to promote survival of the species |
| which of the following statements about asexual reproduction is NOT true? | it is a seldom used form or reproduction |
| Genes are small sequences on DNA, which is coiled up super tight to form | chromosomes |
| Genes carry instructions to make | proteins |
| proteins make up many parts of body including our | all are correct |
| what are genes? | all are correct |
| Only about of genes are different from one person to the next. those that are different are called | 1%, alleles |
| In which stage of mitosis do the chromosomes pull apart and move away from the center of the cell? | anaphase |
| which of the following statements is FALSE regarding mitosis? | Mitosis is a phase of a cell's life in which the cell is growing, replicating DNA and carrying out general activities |
| what is the proper order of the four stages of mitosis? | Prophase, Metaphase, Anaphase, Telophase |
| in which stage of mitosis do the chromosomes line up along the middle of the cell? | Metaphase |
| Although not a stage of mitosis, this phase of a cell's life is when DNA is copied. | Interphase |
| in which step do we see the chromosomes condense and meet up to form homologous pair? | Prophase I |
| what is the term used for shuffling of genetic information that is seen in Prophase I? | crossing over |
| even though meiosis is a big event for a cell, most of a cell's life is spent in this phase where it is growing and replicating DNA | Interphase |
| which of the following is FALSE regarding meiosis? | meiosis is what happens when body cells divide to form identical body cells |
| what is the order of steps for meiosis I | Prophase I, Metaphase I, Anaphase I, Telophase I |
| what is the relationship between an individual's genotype and their phenotype? | genotype partially causes phenotype |
| people today are taller than they were a hundred years ago. This seems to be because: | we have better nutrition, which is an environmental factor that affects phenotype |
| are phenotypes caused by genes or environment? | phenotypes can be caused by a combination of genes and environment |
| which is an example of a phenotype? | all answers are examples of phenotypes |
| why do we think there must be genes for eye color? | there are many eye color phenotypes, and HERC2 only explains one of them |
| Modual 6 | |
| which of the following characteristics is unique to meiosis? | reduction of the number of chromosomes in the cell by half |
| I. In sexual reproduction, each parent provides genetic material for the formation of either an egg or a sperm cell. II. Gametes are produced by mitosis. III. If a sexually reproducing organism is diploid, the gametes are haploid. | I and III |
| what genetic advantage does sexual reproduction have over asexual reproduction? | Genetic variations are possible to promote survival of the species |
| which of the following statements about asexual reproduction is NOT true? | it is a seldom used form of reproduction |
| which of the following is true about both meiosis and mitosis? | DNA replication precedes cell division |
| proteins make up many parts of body including our | all are correct |
| what are genes? | all are correct |
| Genes carry instructions to make | proteins |
| only about of genes are different from one person to the next. Those that are different are called | 1%, alleles |
| Genes are small sequences on DNA, which is coiled up super tight to form | chromosomes |
| what is the proper order of the four stages of mitosis? | Prophase, Metaphase, Anaphase, Telophase |
| which of the following statements is FALSE regrading mitosis? | mitosis is a phase of a cell's life in which the cell is growing, replicating DNA and carrying out general activities |
| although not a stage of mitosis, this phase of a cell's life is when DNA is copied? | interphase |
| in which stage of mitosis do the chromosomes line up along the middle of the cell? | metaphase |
| in which stage of mitosis do the chromosomes pull apart and move away from the center of the cell? | anaphase |
| In which step do we see the chromosomes condense and meet up to form homologous pair? | Prophase I |
| Even though meiosis is a big event for a cell, most of a cell's life is spent in this phase where it is growing and replicating DNA. | Interphase |
| Which of the following is FALSE regarding meiosis? | Meiosis is what happens when body cells divide to form identical body cells |
| What is the term used for shuffling of genetic information that is seen in Prophase I? | Crossing Over |
| What is the order of steps for meiosis I? | Prophase I, Metaphase I, Anaphase I, Telophase I |
| People today are taller than they were a hundred years ago. This seems to be because: | we have better nutrition, which is an environmental factor that effects phenotype |
| Why do we think there must be many genes for eye color? | there are many eye colors Phenotypes |
| what is an example of a phenotype? | all answers are examples of phenotypes |
| what is the relationship between an individual's genotype and their phenotype? | Genotype partially causes phenotype |
| are phenotypes caused by genes or environment? | Phenotypes can be caused by a combination of genes and environment |
| which of the following statements is true? | Recessive alleles are 'carried' in the genotype |
| if two parents have genotypes BB and bb, what are the possible genotypes of their offspring? | Bb, Bb, Bb, Bb |
| is an organism's genetic makeup, while is an organism's physical appearance | Genotype, phenotype |
| Punnett squares are useful for | all are correct |
| if an individual has genotype Dd, they are | heterozygous dominant |
| if there is more than one copy of a chromosome, this is most likely a: | Chromosome Disorder |
| Genetic Disorders that are caused by structural changes to a chromosome or excesses or deficiencies of entire genes located on chromosomes are called: | Chromosome Disorders |
| a group of genetic disorders that combine improper genetic variations in code with environmental factors to produce disease is known as: | Multifunctional Inheritance Disorders |
| a genetic disorder that affects a single gene is categorized as a: | Monogenetic Disorder |
| If diet plays a key role in the development of a disorder with a genetic component, then this is most likely a: | Multifactorial Inheritance Disorder |
| what are the functions of DNA? | Replication and expression |
| in eukaryotic organisms, the DNA is stored where? | the cell nucleus |
| which of the following are the complimentary base pairs in DNA? | adenine and thymine guanine and cytosine |
| which of the following are characteristics of DNA? | double helix, double strands |
| DNA stands for which of the following? | deoxyribonucleic acid |
| which of the following are reasons why RNA is generally less stable than DNA? I. Fewer hydrogen bonds. II. Prevalence of proteins that can degrade RNA. III. | I and III |
| which of the following statements is true? | hydrogen bonds can form between bases in a single RNA molecule |
| which of the following are ways in which RNA is different than DNA: I. Single-stranded II. His ribose as its sugar III. Has uracil | I, II and III |
| which of these statements is true? | RNA is stable |
| which of the following nitrogenous bases is NOT found in RNA? | thymine |
| what is artificial selection? | when humans select traits that will be passed on to future generations |
| the difference in the expression of a trait within a population is called? | Genetic Variability |
| what do we call naturally occurring differences in a population of organisms? | Genetic variation |
| what do we call the idea that all species on earth today come from past species? | the theory of evolution |
| how do random mutations occur? | an error is made when DNA replicates |
| Moduel 7 | |
| can be defined as a change in a characteristic within a population over time | Evolution |
| which of the following is an example of natural selection? I. Albino animals are rare in nature because they are easy for predators to find. II. the fastest gazelle is least likely to be eaten by a lion. III. The gorilla that is strong enough to become al | I, II and III |
| the study of the genetic variation within a population is known as: | population genetics |
| which of the following statements does NOT represent the idea of heritability by acquired characteristics? I. A body builder develops stronger muscles during the course of his life, so his son will be strong as well. II. A cat that lost its tail will prod | III |
| which of the following is NOT a principle of Darwin's theory of evolution? | an individual can evolve |
| which of the following theories best explains the mass extinction the mass extinction of the dinosaurs? | catastrophism |
| on the Galapagos Islands, there are several species that are similar and resemble a common ancestor. Each island has a slightly different ecosystem. Which of the following best explains how these different species came to be? | adaptive radiation |
| which term best describes change over time? | evolution |
| the idea that the earth is constantly changing and, therefore, life on earth is continually evolving is: | Gradualism |
| Scientists have found fossils that show a sudden appearance of a new organism after a period of no change. Which form of evolutionary change best explains this? | Punctuated equilibrium |
| which is true about random mutations? | they introduce new variation into a population |
| which best describes genetic variation? | naturally occurring genetic differences among individuals |
| why is evolution best described as an editing process? | it selects for individuals with traits best suited for the current environment |
| which is true about evolution? | it occurs within a population |
| genetic variability describes which of the following? | the potential for a characteristic to vary within a population |
| which of the following are Darwin's four observations? | overproduction, variation, selection, adaptation |
| survival of the fittest really means what? | the most reproductively fit |
| Variation means which of the following? | there are variations between members of the same species |
| Adaptation means which of the following? | traits that increase suitability to a species' environment will passed on |
| selection means which of the following? | favorable traits that are passed on will ultimately become common within the population |
| which of the following is an example of analogous structures or traits? I. Leg bones of a human and leg bones of a penguin. II. Wing of a finch and wing of a mosquito. III. Beak of a penguin and beak of a duck. | II |
| which of the following is an example of convergent evolution? | Wales and fish both develop the ability to swim in the ocean |
| which of the following is and example of a homologous structure or trait? I. Arm bones of a human and wings of a bird. II. Wing of a penguin and wing of a mosquito. III. Beak of a penguin and beak of a duck. | I and III |
| A scientist notices several birds in the same area that are similar in appearance with the exception of different beak lengths. She observes that one type of bird with a particularly long beak can pick bugs out of holes in the ground, while the birds with | Adaptation |
| A new mutation allows a cheetah to run faster and hunt down more prey than its slower counterparts. This mutation increased the of the cheetah. | Fitness |
| which field would best describe why penguins and polar bears are not found in the same regions of Earth? | Biogeography |
| comparative anatomy is useful for all but which of the following? | very distantly related species |
| how does the fossil record support evolution? | it creates a timeline of evolutionary events from oldest to youngest |
| Paleontology is the study of | Fossils and the fossil record |
| which does NOT provide evidence for evolution? | Climatology |
Created by:
DWgirl