Question

A scientist who studies macroevolution would probably _____.

investigate the common ancestor of zebras and horses
develop a new flu vaccine
research the similarities in the species Canis lupus
research reasons why species change over long periods of time

Answer 1

I think the 3rd one is correct

Answer 2

the best answer would be "research reasons why species change over long periods of time"

if not i apologize but this is my best guess