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bio quiz 2
| Question | Answer |
|---|---|
| Which of these conditions are always true of populations evolving due to natural selection? Condition 1: The population must vary in traits that are heritable. Condition 2: Some heritable traits must increase reproductive success. Condition 3: Individuals | conditions 1 and 2 |
| How does natural selection contribute to the theory of evolution? | Over time, natural selection results in changes in the inherited characteristics of a population. |
| What does it mean to say that a characteristic of an organism is heritable? | The characteristic can be passed onto offspring. |
| Which of the following is an attribute of living things? | They must be capable of acquiring adaptations through evolution. |
| Which of the following best demonstrates (is evidence for) the unity among all organisms? | homologous gene sequences |
| In Pasteur's experiment the independent variable was ____. | Whether dust particles carrying bacteria could enter the flask |
| Which of the following is a correct restatement of Darwin’s phrase “descent with modification”? | Species change over time, and those that exist today descended from other, preexisting species. |
| A group of individuals of the same species living in an area at the same time constitutes a: | population |
| Similar gill pouches in embryos of a chick, a human, and a cat are an example of ________. | developmental homology |
| Fossils of the giant sloth first described by Georges Cuvier suggest that ________. | organisms could go extinct |