Choice # 1
Your book states that scientists have estimated that the human body contains about 60 trillion cells. Why is this as estimate? Give three circumstances in which that number may vary.
Choice # 2
There are six types of statements given in your text. Identify at least four of them, and explain what each type of statement means.
Choice # 3
Explain how genetics works. Discuss Mendel and his accomplishments, dominant-recessive relationships, and the more complex relationships.