CECA
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| What is the term for a feature that allows an organism to survive bettter in its environmet? | Adaptation
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| All the individuals of a species that live in a particular area are called? | population
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| The remnant of an organ that had a function in an early ancestor is known as a(n) | Vestigial structure
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| Which scientist developed a calssification system for organisms? | Carolus Linnaeus
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| What is the process in which humans breed organisms for certain traits? | Artifical Selection
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| Individuals that are well adapted to their environment will survive and produce | more offspring
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| the combined alleles of all the individuals in a population is called the | gene pool
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| what are two main sources of geneitc variation | mutations and recombinations
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| what type of selection occurs when individuals in a population with the intermediate phenotype are selected for | stabilizing selection
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| When a few individuals start a new colony it most likely results in | genetic drift through the founder effect
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| in the actual allele frequencies in a population do not match genotype fequencies predicted by the Hardy-Weinberg equation, the population is | evolving`
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| Reproductive isolation occurs when | members of different populations can no longer mate successfully
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| what type of isolation occurs when the timing of reproduction is different between two populations | temporal
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| Coevolution is a process in which species | evolve in response to changes in each other
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| two species that are closely related become increasingly different through | divergent evolution
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| which of the following characteristics must a good index fossil have | very common, easy to indentify, existed for a brief time, widespresad
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| the smallest unit of geologic time is a(n) | epoch
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| what do scientists estimate as the age of the Earth | 4.6 billion years old
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| the Miller-Urey experiment demonstrated that | energy from lightning might have helped create Earths first organic molecules
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| Sceintists hypothesize that cyanobacteria changed the early Earth by | adding oxygen to the atmosphere
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| The evolution of sexual reproduction is resulted in | increased genetic variation
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| the first land organisms emerged during the | Paleozoic era
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| the age of reptiles in a term often used to describe the | Mesozoic era
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| which unit of geologic time followed the mass extinction of dinosuars | Cenozoic era
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| What group of animals includes modern animals | primates
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| the follsil records identifies the hominid with the largest brain as | Homo neanderthalensis
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| Fossil evidence suggests Homo Sapiens first appeared | 200,000 years ago
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| a group of organisms of the same species that live in the same area is called a(n) | population
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| Ogranisms that deed on dead or decaying matter are called | detritivores
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| which process is part of the hydrologic cycle | evaporation
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| almost all autotrophs get their energy from | sunlight
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| an organism that has an unusually large effect on an ecosystem is called a(n) | Keystone species
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| which of these is an example of parasitism | a leech feeds on a hosts body
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| nesting birds often space themselves evenly from other nests. This pattern is called | uniform dispersion
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| which of the following will increase the size of population | immigration and births
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| pinoeer species are the first | organisms to live in perviously uninhabited areas
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| the layer of air surrounding Earth is known as the | Atmosphere
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| a regions climate, unlike its weather, is based on | a long-term pattern
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| the uppermost layer of branches in rain forest trees is called the | canopy
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| communities on a mountain differ depending on the | elevation
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| where is the tropical zone | surrounding the equator
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| Trees that drop their leaves during the cold season are known as | deciduous tress
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| tiny free-floating animals that live in water are called | zooplankton
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| What are renewable resources | resources that can replenish themselves over time
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| in what biome is biodiveristy the highest | tropical rain forests
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| organisms are named and cdalssified based on physical characteristics in | linnaean taxonomy
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| which of the following is the most abundant group of organisms on Earth | bacteria
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| which of the following lists linnaean taza in the correct order from general to specific | phylum, order, family, genus
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| in the linaean system of classification, which of the following is most commonly defined as a group of organisms that can breed and produce offspring | species
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| how many domains are there in the most current tree of life | three
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| how many kingdoms are there in the most current tree of life | six
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| the name Canis lupis is an example of | binomial nomenclature
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| This type of evidence is considered the most accurate in classifying organisms. | molecular
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| genetic material of a virus consists of | RNA or DNA
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| Prions are infectious particles composed of | protein
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| a viral capsid is composed of | proteins
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| In a lysogenic infection, once the DNA of the virus is incorporated into the bacterial DNA, the DNA is called | prophage
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| Antibiotics are used to fight | bacterial infections
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| Prokaryotes reproduce by | binary fission
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| The term protozoa is generally used to describe | animal-like protists
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| fungal cell walls are made of | chitin
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| yeast that makes bread rise is | sac-fungus
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| the process in which yeast reproduce by forming a daughter cell that is genetically identical buy smaller in size is called | fission
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| why are most plants and some algae green | they contain chlorophyll
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| pollination occurs when pollen meets | female reproductive parts of the same plant species
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| Seed plants whose seeds are not enclosed in fruit are | gymnosperms
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| fleshy fruits often play a role in seed dispersal when they are | eaten and discarded by animals
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| how many seed leaves do dicots have | 2
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| trees and most other woody plants are | perennials
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| the study of plants is | botany
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| the function of the vascular tissue is to | transport water and nutrients
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| in the pressure-flow model, sugar is pumped into the phloem, water flows into the phloem through | osmosis
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| roots absorb water partly through tiny extensions of dermal cells called | root hairs
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| the blade of a leaf is connected to the stem by a thin stalk called a | petiole
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| the upper surfaces of leaves are used mainly for | light gathering
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| seedless plants disperse to new areas using | spores
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| colorful fragrant flowers are most likely pollinated by | animals
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| a coconut fruit can function in dispersing coconut seeds by | floating in the water
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| during dormancy, what plant stage is protected from extreme conditions by the seed coat? | the embryo
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| plant growers create new plants from parts of a parent plant using the process of | vegetative propagation
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| a root growing downward and a shoot growing upward are both examples of | gravitropism
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| Heterotrophs must eat other organisms because they | cannot make their own food
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| Which animal is a vertebrae | lizard
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| during the process of incomplete metamorphosis, a young insect looks like a | miniature adult
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| the entire surface of an arthopod's body is covered by a protective | exoskeleton
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| how many distinct body sections do crustaceans have | 2
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| an organism that carries a disease from one host to another is known as a | vector
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| an animal that has eight legs, fanglike pincers and ability to produce silk is an | arachnid
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| what material makes the exoskeleton of most arthropods very hard? | chitin
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| insects, bats, and birds are the only living groups of animals that have evolved | true flight
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| Gills are large sheets of thin tissue that | take in dissolved oxygen
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| what is the term for the fan-shaped array of bones in fish such as a goldfish and tuna? | ray-fin
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| which animals ere the first to develop four limbs? | amphibians
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| the first recognizable vertebrates were | fish
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| sharks have a skeleton made of | cartilage
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| which of the following is a membranous organ that develops in females mammals during pregnancy? | placenta
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| amniote animals, whose embryos develop in a fluid-filled sac, include | reptiles, birds, and mammals
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| compared to an ectotherm, an endotherm must | eat more food
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| all mammals share the characteristic of | having hair on their bodies
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| which reptilian traits or structures have monotremes retained? | cloaca and egg-laying
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