Which provides the organelles, building blocks for compounds such as proteins and nucleic acids, and other necessary materials for the zygote?

a. Sperm

b. Egg

c. Both the sperm and the egg

d. None of the above

The overgrowth of algae on the surface of this water is caused by A) a decrease in the oxygen levels in the water B) not enough primary consumers in the ecosystem C) an increase in nitrogen levels in the water from fertilizer runoff D) an excess of

Does fitness and survival have the same meanings

During which stage of postmortem decomposition does the body become bloated with gas?

Gametogenesis is that mitosis or meiosis

Describe the universe before the big bang

Why is an organism's niche like a person's occupation? A) An organism makes "money" by working in its niche. B) A niche is a "company" that the organism has to work in. C) A niche is a "factory" where organisms build things.

After eating a carbohydrate-rich meal, the mammalian pancreas increases its secretion of * glucagon O throxine insulin oxytocin

2. The heart is classified as a (n)

How long does it take for cocaine to leave out your Stream

Why is the tundra treeless? lack of sufficient water permanently frozen ground winters too harsh too many fires