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50 Question Test #2
| Question | Answer |
|---|---|
| Which group contains single-celled organisms? | fungus |
| What conclusion can be made about earthworms because they do NOT have an internal skeleton? | They are invertebrates. |
| Organisms can be separated by their most basic characteristics into the broadest groups known as | domains |
| The classification of some organisms has changed. What new process is used to reclassify organisms? | Structures are now examined at the molecular level. |
| Single-celled organisms that cause disease can be found in which domain? | Bacteria and Eukarya |
| Some prokaryotes once classified in the domain Bacteria are now classified as | Archaea |
| How are organisms classified as Eukarya different from organisms classified as Archaea and Bacteria? | They all have membrane-bound nuclei. |
| Prokaryotes that live in extreme environments. | Archaea |
| Which system groups life forms by Domains? | Archaea, Eubacteria, Eukaryota |
| Which cellular organelle modifies fatty acids? | endoplasmic reticulum |
| Statements that are TRUE for plant cells and FALSE for animal cells. | Plant cells make their own food, but human cells do not. |
| Which body system is responsible for breaking down food into molecules that it absorbs? | digestive |
| What part of the body receives information from the senses? | brain |
| Which two human body systems are MOST responsible for getting oxygen to cells? | circulatory and respiratory |
| Which of these is a function of all cells? | to transfer genetic information from one generation to the next |
| Which of these is the basic building block of complex organisms? | a cell |
| How do muscles and bones work together to create body movement? | The muscles pull on the bones. |
| The nucleus of the cell controls cell activity. Which body system performs a similar function in humans? | central nervous system |
| A child's sex is determined by the sex chromosomes of which person? | father |
| Which of these cell parts contain instructions for the passage of traits from one generation to the next? | chromosomes |
| DNA stores the genetic instructions transferred from one generation to the next. What is DNA? | a molecule |
| Which of these cell parts store genetic instructions for the entire organism and transfers them from one generation to the next? | DNA molecules |
| What is the definition of heredity? | The passage of genetic information from one generation to the next. |
| Some fungi can reproduce either asexually or sexually, resulting in offspring with different characteristics. Sexually produced offspring have | a combination of genetic material from each parent cell. |
| This is a part of the process of sexual reproduction. | pollination |
| Potatoes reproduce by growing sprouts on their surfaces. When planted, these sprouts grow into new plants. This is an example of | asexual reproduction |
| A statement which describes a characteristic of both sexual and asexual reproduction | New cells are produced |
| What is a benefit of sexual reproduction? | Ability to produce genetically different offspring. |
| What structure is found in producers in nearly all ecosystems? | chloroplasts |
| A statement that explains why photosynthesis is the foundation of most food webs. | Sunlight is the source of energy for nearly all ecosystems. |
| How does the water in an estuary compare to the water in the open ocean? | Estuaries have more concentrated nutrients and less concentrated salt. |
| A true comparison of ecosystems. | Grasslands get more rain than deserts. |
| What is a true of mutualistic relationships among organisms? | The organisms cooperate with each other. |
| In a completely cooperative relationship, each organism benefits equally. What sequence lists these relationships in order of increasing cooperativeness? | predation, parasitism, commensalism, mutualism |
| A statement that describes two species of animals that live in biological coexistence with each other. | They live in the same area but have different food and nesting needs. |
| Animals depend on plants for many things, including food. What do plants depend on from animals? | carbon dioxide |
| This statement best describes biomes. | Large ecosystems that have distinctive organisms and a particular climate. |
| As members of a food web, humans are considered to be | consumers |
| What has to happen for an inherited trait to increase in a population? | Organisms with the trait need to bear more offspring than organisms without the trait. |
| As some organisms die, their remains become buried by mud and are eventually compressed into a type of rock. What rock type forms from this process? | sedimentary |
| Fossil records indicate that species changes generally.\ | take place over many generations |
| What factor MOST accurately describes the statement "survival of the fittest" in relation to natural selection? | The ability of offspring to reproduce |
| In what scenario would natural selection MOST likely occur? | centuries of gradual climate change |
| While digging in the side of a hill, students found fossils in the rock layers. From the fossils they uncovered, what was the MOST likely progression of environments in that area? | It was first a forest and then became a lake. |
| Diversity among members of a species is important because diversity | increases the chances of survival under changing conditions. |
| In what type of rock would a geologist MOST likely find evidence of ancient life? | sedimentary |
| Sedimentary rock helps scientists piece together the history of Earth MOST likely using clues from | fossils |
| What would help determine the changes in a plant species over geologic time? | examining the fossil record of the plant |
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vstatenlifescience
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