Q: The end of a pine tree branch bears the male cones that produce what? Choices: - the ovaries - oxygen - the stigmas - the pollen A:
the pollen

(Question)
Q: What does the tires meeting the road cause when a car accelerates? Choices: - erosion - vibration - thrust - friction A:
(Answer)
friction

Ques: Q: Oxytocin, which stimulates the contractions of labor, is a type of what? Choices: - metabolite - inhibitor - steroid - hormone A:
Ans: hormone

(Q).
Q: Living things that feed on others are generally known as what? Choices: - customers - isolators - producers - consumers A:
(A).
consumers

Ques:Q: Mutations which benefit the organism in which they occur are known as? Choices: - extraordinary mutations - helpful mutations - healthy mutations - beneficial mutations A:

Ans:beneficial mutations

Ques: Q: The challenge of techniques used for proteomic analyses is the difficulty in detecting small quantities of what? Choices: - bacteria - acids - particles - proteins A:
Ans:
proteins