Harming an animal species causes that animal 's population to decrease.
Species are the different kinds of organisms.
Harming a certain kind of organism causes that animal's population to decrease.
Harming a certain kind of animal will cause the population of that animal to do what?
Options:
a) decrease
b) eat more
c) increase
d) break off
e) threatened
f) reproduce
g) reduce
h) kill them