Teenage girls are especially vernerable to STIs because of there lowere level of protective antibodies.
Answer:
The appropriate answer is "Secondary Sexual Characteristics".
Explanation:
- In reaction to the unopposed intervention of estrogens especially gonadally produced by testosterone, specific biological traits involving breast growth occur throughout puberty.
- Some of the anatomical traits that aren't even specifically included in the process of replicating outside of a fully experienced species.
Fertility is the actual output of reproduction, and fecundity is the potential output