Question

review vocabulary
choose the letter of the best answer.

1. an inherited structure that has lost much of its original function is called a/an

a. fossil.
b. adaptation.
c. vestigial structure.
d. analogous structure.

1. the study of past and present distribution of organisms is called

a. evolution.
b. adaptation.
c. fossils.
d. biogeography.

Explanation:

1. A vestigial structure is an inherited structure that has lost much of its original function. Fossils are preserved remains of organisms. Adaptation is a trait that helps an organism survive. Analogous structures have similar functions but different evolutionary origins.
2. Biogeography is the study of the past and present distribution of organisms. Evolution is the change in species over time. Adaptation is a trait for survival. Fossils are preserved remains.

Answer:

1. C. vestigial structure
2. D. biogeography