science (check plz)
posted by me .
3.A nonnative species of animal is introduced into A healthy ecosystem.In its new environment, this species has no predators, although it preys on several native animals in the ecosystem.Make a prediction about the biodiversity and health of this ecosystem in the future.
A.biodiversity and ecosystem health will both increase in the future
B.biodiversity and ecosystem health will both dcrease in the future***.
C.biodiversity will decrease and ecosystem health will increase the future.
D.biodiversity will increase and ecosystem health will decrease in the future.
4.In an island ecosystem,fox and skunks both hunt mice and toads.which of the following correctly decribes some of these relationships?
A.skunks and mice have a competive relationship.
B.skunks and toads have a predator-prey relationship.
C.fox and skunks have a predator prey relationship.***
D.toads and mice have a competive relationship.