The answer is B
Isotonic mean that there is an even number of solutes inside and outside of the cell which is what this picture is referring to.
The bear population would most likely increase is the answer to this question.
After the bear population increases, however, the prey population will begin to decrease eventually causing a decrease in the bear population. This will most likely cause an increase in the salmon population- thus continuing this cycle.
They use hormones which are the body's chemical messengers
The terminal parts of the filiform papillae in frog tongues have a rounded shape except for M. nasuta, in which the filiform papillae have flat tips (Figure 1E). Further we found interspecific variation in the surface patterns of the filiform papillae (Figure 2).
