Evolution is a change in a. a living thing as it grows older
b. a species over time
c. characteristics of living things
d. the history of the Earth
2
Homologous body parts are similar in
a. function
b. structure
c. both a and b

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species