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| 1 | |
A species is |
| | A) | a community of organisms that are able to form a population. |
| | B) | composed of organisms that are able to breed with one another and produce offspring that are themselves able to breed with one another. |
| | C) | a population that is able to breed with individuals in other communities and produce offspring. |
| | D) | all the individuals in all the populations in a given area. |
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| 2 | |
These factors influence climate: |
| | A) | abiotic and biotic factors. |
| | B) | biomes and ecosystems. |
| | C) | temperature and rainfall, which are themselves influenced by other factors, including the unequal heating of Earth. |
| | D) | temperature and rainfall, which are themselves influenced by the amount of vegetation and the regions in which vegetation may be found. |
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| 3 | |
Most biologists today classify living things into |
| | A) | three domains and six kingdoms. |
| | B) | six domains and three kingdoms. |
| | C) | three domains and five kingdoms. |
| | D) | three domains and four kingdoms. |
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| 4 | |
A behaviour, structure, or physiological process that helps an organism survive and reproduce in a particular environment is called |
| | A) | a variation. |
| | B) | evolution. |
| | C) | an adaptation. |
| | D) | a mutation. |
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| 5 | |
The process of mitosis ensures that |
| | A) | when cells divide, each cell gets equal numbers of organelles. |
| | B) | when a parent cell produces daughter cells, each daughter cell is different from the parent cell. |
| | C) | reproductive cells have half the original number of chromosomes. |
| | D) | each daughter cell receives a complete set of the chromosomes. |
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| 6 | |
The process of meiosis ensures that |
| | A) | the cell resulting from the fertilization of an egg by a sperm has the correct number of chromosomes. |
| | B) | the chromosome number in daughter cells is the same as in a parent cell. |
| | C) | two genetically different daughter cells are produced. |
| | D) | growth and repair of somatic (body) cells occurs on a timely basis. |
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| 7 | |
Biological diversity (or biodiversity) refers to |
| | A) | all the areas on Earth that support life. |
| | B) | the variety of species in an area and their range of adaptations. |
| | C) | a variation that helps an individual organism in a population to survive. |
| | D) | the study of the past and present geographical distribution of species. |
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| 8 | |
A human body cell has 46 chromosomes. Following mitosis, how many chromosomes do the daughter cells of a human body cell have? |
| | A) | 23 |
| | B) | 92 |
| | C) | 46 |
| | D) | None. Body cells do not undergo mitosis. |
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| 9 | |
One particular value of scientific theories is |
| | A) | they enable scientists to make accurate predictions about new situations and experimental outcomes. |
| | B) | they are the same as theories in other areas of knowledge and inquiry. |
| | C) | they are never changed or contradicted once they have been accepted by the scientific community. |
| | D) | they may become scientific hypotheses once they have been accepted by the scientific community. |
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| 10 | |
Identify the sequence of concepts that moves from least inclusive to most inclusive. |
| | A) | population, species, community, ecosystem |
| | B) | individual organism, species, population, community |
| | C) | population, ecosystem, biosphere, community |
| | D) | individual organism, community, population, biosphere |
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