What undergoes a movement that changes population size?
Wasps camels sheep insects animals sharks birds ducks
A B C D E F G H
Bird Migration and Isotopes Tracking animal migration is a difficult task.
birds undergo a type of movement that changes population size
What undergoes a movement that changes population size? (A) Wasps (B) camels (C) sheep (D) insects (E) animals (F) sharks (G) birds (H) ducks