Answer:
They are to wait for at least one year.
Explanation:
Infertility maybe defined as trying to get pregnant without success despite having frequent sexual intercourse for a period of at least one year.
Answer:
True
Explanation:
The species that went extinct could be a food source for another and that would possibly be detrimental to the chain.
Answer:
The combination of ideas to form a theory
Explanation:
The answer is D, all of the above.