It takes 9 months for you to be born
D, is the answer. If you take antibiotics more than you're supposed to your immune system gets used to it and it no longer works.
a hybrid that is heterozygous with respect to a specified gene.
Limiting factors, or things in the environment that can lower the population growth rate, include low food supply and lack of space. When organisms face limiting factors, they show logistic type of growth (S-curve).
