Q: What is oceanography the study of? Choices: - bodies of water - seas - waters - oceans A:
oceans

(Question)
Q: The lungs perform gas exchange using air and what fluid, which is coming and going from the heart? Choices: - mucus - water - saliva - blood A:
(Answer)
blood

Ques: Q: Soft cartilage gradually turns into hard bone through what process? Choices: - oxidation - elongation - calcification - ossification A:
Ans: ossification

(Q).
Q: What are the ultimate source of genetic variation? Choices: - parasites - gravity - proteins - mutations A:
(A).
mutations

Ques:Q: What type of transport is vesicle transport considered to be? Choices: - passive transport - intercellular transport - catalyst - active transport A:

Ans:active transport

Q: What are cyclins made up of? Choices: - enzymes - group of sugars - steroids - group of proteins A:
group of proteins