Term
| What is the mechanism for evolutionary process? A population can change over generations if the individuals that posses certain heritable traits leave more offspring than other individuals. |
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Definition
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Term
| What are remains or traces of organisms from the past usually found in sedimentary rock? |
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Definition
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Term
| What is the change over time in the genetic composition of a population? |
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Definition
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Term
| What is the study of fossils? |
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Definition
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Term
| What is the idea that each boundary between strata represents a catastrophe? |
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Definition
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Term
| What is the idea that profound change can take place through the cumulative effect of slow but continuous processes? |
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Definition
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Term
| What is the idea that the same geological processes are operating today as in past, and at the same rate? |
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Definition
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Term
| What are the two main ideas that Darwin developed? |
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Definition
1.Descent with modification.
2.Natural selection is the cause of adaptive evolution. |
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Term
| What is selecting and breeding individuals with desired traits? |
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Definition
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Term
| What is the first observation Darwin made? |
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Definition
| Observation #1: Members of a population often vary greatly in their traits. |
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Term
| What was the second observation Darwin made? |
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Definition
| Observation 2: Traits are inherited from traits to offspring. |
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Term
| What was the third observation Darwin made? |
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Definition
| observation 3: All species are capable of producing more offspring than the environment can support. |
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Term
| What was the fourth observation Darwin made? |
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Definition
| Observation 4: Owing to a lack of food or other resources, many of these offspring do not survive. |
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Term
| What were the two things Darwin inferred from his observations? |
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Definition
1: Individuals whose inherited traits give them a better chance to survive in an environment usually leave behind more offspring.
2: The unequal ability of individuals to survive and reproduce will lead to the accumulation of favorable traits in the population over generations. |
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Term
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Definition
| No, populations evolve over time. |
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Term
| What are two examples that provide evidence for natural selection? |
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Definition
1. The effect of differential predation on guppy populations.
2. The evolution of drug resistant HIV. |
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Term
| What virus uses the enzyme reverse transcriptase to make a DNA version of its own RNA genome? |
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Definition
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Term
| What term means "similarity resulting from common ancestry?" |
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Definition
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Term
What are remnants of features
that served important functions in the
organism’s ancestors? |
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Definition
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Term
| What are examples of homologies at the molecular level? |
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Definition
Genes shared among organisms inherited
from a common ancestor. |
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Term
What is the evolution of similar, or analogous, features in distantly
related groups? |
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Definition
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Term
| When do analogous traits arise? |
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Definition
| when groups independently adapt to similar environments in similar ways. |
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Term
| What is Darwin's observation of the geographic distribution of species called? |
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Definition
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