Q: Growth factors and certain plant and animal hormones serve as molecular messengers that initiate pathways of what? Read this paragraph and choose the correct option from the provided answers: 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? Read this paragraph and choose the correct option from the provided answers: When sunlight heats Earth's surface, some of the heat radiates back into the atmosphere. Some of this heat is absorbed by gases in the atmosphere. This is the greenhouse effect , and it helps to keep Earth warm. The greenhouse effect allows Earth to have temperatures that can 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? Read this paragraph and choose the correct option from the provided answers: Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density. 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? Read this paragraph and choose the correct option from the provided answers: Diffusion is 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? Read this paragraph and choose the correct option from the provided answers: The mRNA is the message sent from the nucleus to the ribosome, the organelle of protein synthesis. Like a foreign language, the genetic code of the mRNA message must then be translated so that the ribosomes make the correct protein. The process of reading the code of a mRNA to make a protein is called translation. Choices: - dna - mitochondria - rna - mrna A:

Ans:mrna

Ques: Q: In a transverse wave, the highest point the wave reaches is known as the? Read this paragraph and choose the correct option from the provided answers: In a transverse wave, particles of the medium move up and down at right angles to the direction of the wave. Wave amplitude of a transverse wave is the difference in height between the crest and the resting position. The crest is the highest point particles of the medium reach. The higher the crests are, the greater the amplitude of the wave. Choices: - flow - valley - axis - crest A:
Ans:
crest