Some don't have any able to see effects,but some cause diseases
The answer is "<span>B: all the gray squirrels that live in a forest" </span>
Conservation is the protection of an organism or a group of organisms (like an endangered species or forests).
Biodiversity is the numerous amounts of species habitated in our earth. The more biodiversity, the better.
Conservation protects biodiveristy, thus, allowing more species to survive and thrive.
D is the correct answer since all others are highly unlikely.
Gas molecules across the membrane
It can be water molecules as well