Answer:
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.
I believe the answer is B
A. Releasing a stimulus when hormones increase or decrease I think
Answer: Probability/mutations
Explanation: A punnett square predicts the probability that a child or the offspring will receive specific genes or look a certain way. The genes with the highest percentage or usually the ones that show, but sometimes recessive genes are the ones that show through, which may be what you mean by a different genotype/phenotype being different that what was predicted by the punnett square.
a mutation may also occur that messes up all of this.