Answer:
regulators
Explanation:
regulators use their metabolism to control their internal environment
A. land plants, tiny water plants
a. slug, frog, newt
b. plants, slug-insect-water fleas, frog-fish-newt, perch-fox, heron
c. water fleas, diving beetles
d. heron, perch
e. one thing that could happen if all frogs suddenly died is that there would be an overpopulation of slugs, insects, and beetles. another thing that could happen would be that foxes would only rely on getting slugs for food so the slugs would soon go extinct and the plants would possibly over populate.
hope this helps!!
Answer:
I think it is A. Antibodies
Please tell me if I am wrong
There is 20 chromosomes in a adult wild mouse
Answer:
takes in carbon dioxide, puts out oxygen
Explanation:
