Explanation:
In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal
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The independent variable is the new plant food
If you are referring to a Asimina Triloba, also known as the PawPaw Tree, animals like deer, rabbits, mules, bears, and goats have been known to snack on its fruits. However, the fruits are most often consumed by small mammals such as raccoons, opossums, and foxes. They are usually homes for many species of butterfly larvae, most commonly the Zebra Swallowtail Butterfly.
The PawPaw fruits give off the scent of rotten flesh in order to attract blowflies and carrion beetles for cross pollination.
I believe it is “animals and plants caanot directly use all the nitrogen found in our atmosphere”