Question

match the vocabulary term to its definition.

1. ______ process by which organisms survive and reproduce a. analogous structures
2. ______ body parts similar in structure in different species b. homologous structures
3. ______ body parts similar in function but not in structure c. adaptation
4. ______ heritable characteristic that increases fitness d. natural selection

review key questions
provide evidence and details to support your answers.

1. what three patterns of biodiversity did darwin observe?
2. what are two ways that lamarcks ideas paved the way for later biologists such as darwin?
3. why is heritable variation important for both artificial and natural selection?
4. list three forms of evidence for descent from a common ancestor.
5. how does the work of peter and rosemary grant illustrate natural selection?

Explanation:

1. Natural selection is the process by which organisms survive and reproduce.
2. Homologous structures are body parts similar in structure in different species.
3. Analogous structures are body parts similar in function but not in structure.
4. Adaptation is a heritable characteristic that increases fitness.

Answer:

1. d. natural selection
2. b. homologous structures
3. a. analogous structures
4. c. adaptation