Q: In species with sexual reproduction, each cell of the body has two copies of each what? Choices: - cell - rna strand - dna strand - chromosome A:
chromosome

(Question)
Q: What has the smallest, lightest atoms of all the elements and is colorless, odorless, tasteless and nontoxic, but highly flammable in its pure state? Choices: - helium - magnesium - barium - hydrogen A:
(Answer)
hydrogen

Ques: Q: What does the slope of a position-time graph represent? Choices: - trajectory - direction - acceleration - velocity A:
Ans: velocity

(Q).
Q: What giant planet is far away from and much less dense than earth? Choices: - venus - uranus - mars - jupiter A:
(A).
jupiter

Ques:Q: What is formed when water vapor in the air condenses into tiny droplets? Choices: - smoke - rain - hail - fog A:

Ans:fog

Q: Hydrocarbons are combined with oxygen in a series of enzymatic steps to product water, carbon dioxide, and energy, which is stored in the form of what? Choices: - energy - dormant molecules - light - reactive molecules A:
reactive molecules