Q: What occurs when two waves combine and cancel each other out? Choices: - terrible interference - primitive interference - molecular interference - destructive interference A:
destructive interference

(Question)
Q: All chemical changes involve a transfer of what? Choices: - heating - fuel - Water - energy A:
(Answer)
energy

Ques: Q: A diploid cell contains two sets of what? Choices: - ribosomes - neutrons - atoms - chromosomes A:
Ans: chromosomes

(Q).
Q: Through which organ do hookworm larvae enter the human body? Choices: - through the lungs - through the rectum - through the mouth - through the skin A:
(A).
through the skin

Ques:Q: What are two examples of lipids? Choices: - vitamins and fatty acid - adipose tissue and olive oil - defects and oils - fats and oils A:

Ans:fats and oils

Q: What is defined as a change in the inherited traits of organisms over time? Choices: - variation - divergence - generation - evolution A:
evolution