Answer:
The balance of nature is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system
Explanation:
<span>the definition: Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations. Adaptations are the result of evolution. Evolution is a change in a species over long periods of time. The Answer is D. Protective over young cubs</span>
I would say estuary, because that's where a fresh water river and an ocean meet, and that leads to a transition between salt to fresh water.
