Ques: Q: What is the term for liquid waste formed by kidneys? Choices: - blood - feces - sperm - urine A:
Ans: urine

Ques: Q: What occurs between long warm climate periods? Choices: - hurricanes - mass extinction - drought - ice ages A:
Ans: ice ages

Ques: Q: Both androgen secretion and spermatogenesis occur continuously starting with what? Choices: - birth - mutation - walking - puberty A:
Ans: puberty

Ques: Q: What do you call an incomplete outer shell of an atom? Choices: - helium shell - motile shell - nucleic shell - valence shell A:
Ans:
valence shell