Q: What is the only planet that is known to support life? Choices: - Venus - Mars - Saturn - earth A:
earth

(Question)
Q: What term decribes the amount of time required for half of the original material to decay in an isotope? Choices: - radioactive isotope - Geiger count - life cycle - half-life A:
(Answer)
half-life

Ques: Q: The major fuel for the brain is which carbohydrate? Choices: - glutamate - sucrose - insulin - glucose A:
Ans: glucose

(Q).
Q: Cells in green algae divide along cell plates called what? Choices: - chloroplasts - cellulose - xanthophylls - phragmoplasts A:
(A).
phragmoplasts

Ques:Q: If you find dna floating in a cell's cytoplasm, what kind of organism is it? Choices: - unicellular - xerophytic - eurocratic - prokaryotic A:

Ans:prokaryotic

Q: How many amino acids generally consist in protien? Choices: - 13 or more - 7 or more - 67 or more - 100 or more A:
100 or more