Q: Chemical equations need to be balanced to satisfy the law of what? Choices: - material of matter - glow of matter - speed of matter - conservation of matter A:
conservation of matter

(Question)
Q: What does the sebaceous gland secrete which waterproofs the skin and hair? Choices: - pus - progesterone - collagen - sebum A:
(Answer)
sebum

Ques: Q: What is it called when the soils of the arctic tundra remain in a perennially frozen state? Choices: - concentrated freeze - permafreeze - glacial domination - permafrost A:
Ans: permafrost

(Q).
Q: What blood protein carries oxygen from the lungs to cells throughout the body? Choices: - plasma - platelets - dopamine - hemoglobin A:
(A).
hemoglobin

Ques:Q: What debated therapy offers a potential method for replacing neurons lost to injury or disease? Choices: - cell production therapy - stem cell reduction - cell duplication - stem cell therapy A:

Ans:stem cell therapy

Ques: Q: What is the period during which humans become sexually mature called? Choices: - adulthood - maturity - adolescence - puberty A:
Ans:
puberty