Q: Growth factors and certain plant and animal hormones serve as molecular messengers that initiate pathways of what? Choices: - cellular decay - cell fusion - cell growth - cell division A:
cell division

(Question)
Q: What effect in the atmosphere ensures that the earth maintains the correct temperature to support life? Choices: - coriolis effect - ozone effect - smog effect - greenhouse effect A:
(Answer)
greenhouse effect

Ques: Q: Water molecules are polar, so they form what type of bonds? Choices: - carbon - oxygen - helium - hydrogen A:
Ans: hydrogen

(Q).
Q: What is the term for the movement of molecules from an area of high concentration to an area of low concentration? Choices: - concentration - Osmosis - passive transport - diffusion A:
(A).
diffusion

Ques:Q: What is the message sent from the nucleus to the ribosome? Choices: - dna - mitochondria - rna - mrna A:

Ans:mrna

Ques: Q: In a transverse wave, the highest point the wave reaches is known as the? Choices: - flow - valley - axis - crest A:
Ans:
crest