Q: What substance, involved in most biochemical reactions, is essential to life? Choices: - carbon - nitrogen - air - water A:
water

(Question)
Q: Almost all plants make food through what process? Choices: - glycolysis - evolution - hydrolysis - photosynthesis A:
(Answer)
photosynthesis

Ques: Q: What artificial process involves making an exact copy of a gene? Choices: - material cloning - candidate cloning - ribosome cloning - gene cloning A:
Ans: gene cloning

(Q).
Q: What type of gases trap heat in the atmosphere, causing earth to have a moderate temperature? Choices: - ozone gases - carbon monoxides - sulfuric gases - greenhouse gases A:
(A).
greenhouse gases

Ques:Q: What does a virus inject into the host cell? Choices: - cells acid - Acetic acid - proteins acid - nucleic acid A:

Ans:nucleic acid

Question: Q: What is the common term for erythrocytesare, specialized cells that circulate delivering oxygen to cells and are formed from stem cells in the bone marrow? Choices: - plateletes - white blood cells - monocytes - red blood cells A:
Answer:
red blood cells