Q: What is the minimum mass capable of supporting sustained fission called? Choices: - concentrated mass - baseline mass - particular mass - critical mass A:
critical mass

(Question)
Q: Fertilization is the union of a sperm and egg, resulting in the formation of what? Choices: - a cytoplasm - a nuclei - a bacteriophage - a zygote A:
(Answer)
a zygote

Ques: Q: Because they are charged (polar), these ions do not diffuse through what? Choices: - substrate - cell wall - protein - membrane A:
Ans: membrane

(Q).
Q: Acid rain may be caused by what? Choices: - hurricanes - water pollution - volcanos - air pollution A:
(A).
air pollution

Ques:Q: What kind of weather change do la nina years usually bring? Choices: - heat - Mass amounts of snow - moisture - drought A:

Ans:drought

Question: Q: Crowding and resource limitation can have a profound effect on the rate of what? Choices: - population stagnation - technology advances - cultural advances - population growth A:
Answer:
population growth