Q: Most of food's chemical energy ultimately comes from what source? Choices: - plants - air - minerals - sunlight A:
sunlight

(Question)
Q: Angiosperms possess reproductive structures that attract animals that perform what role? Choices: - evolution - vegetation - isolation - pollination A:
(Answer)
pollination

Ques: Q: What term means the force of attraction that holds together oppositely charged ions? Choices: - electron bond - magnetic bond - solvent bond - ionic bond A:
Ans: ionic bond

(Q).
Q: What is the general composition of the continental crust? Choices: - limestone - marble - sandstone - granite A:
(A).
granite

Ques:Q: What term describes the amount of solute in a given amount of solution? Choices: - density - temperature - cloudiness - concentration A:

Ans:concentration

Ques:Q: What does the megaspore mother cell produce after meiosis division? Choices: - four diploid megaspores - two diploid megapores - two haploid megaspores - four haploid megaspores A:

Ans:
four haploid megaspores