Chapter 16.4

Question 1

biogeography

Answer 1

Study of where organisms live now and where they and their ancestors lived in the past

Question 2

homologous structure

Answer 2

Structures that are shared by related species and that have been inherited from a common ancestor

Question 3

analogous structure

Answer 3

Body parts that share common functions, but not structure

Question 4

vestigial structure

Answer 4

Inherited from ancestors but have lost much or all of their original function due to different selection pressures acting on the descendant

Question 5

embryology

Answer 5

Development provides further evidence that organisms have descended from a common ancestor

Question 6

genetic code

Answer 6

Nearly identical in almost all organisms, including bacteria, yeasts, plants, fungi and animals