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 process of meiosis produces only gametes, eggs or sperm. According to the diagram, how many sperm are formed from each cell that undergoes meiosis?

You want to estimate the number of canvas backs (a type of duck) at the Sacramento Wildlife Refuge. In two days you capture 200 canvas backs, mark all of them and release them.

When a cat drop from a trees to the grounds the conversation of what

How are food and water shortage related to pollution

When does atp release energy?

Which is NOT a function of the human stomach? A) stores food for short period of time B) breaks up food physically and chemically C) receives food from your mouth directly after swallowing D) HCl produced inside the stomach to aid in digestion

What is a recessive gene? a. The gene that displays itself. b. The hidden gene. c. The gene that is dominant.

Much of the fluid that moves across capillary walls and into the tissues moves as a result of filtration, forced by blood pressure. o2 on the other hand travels from the capillaries into the tissues as a result of what?

Which organisms are extremely small and use hosts as both home and food supply

Explain generaly how Cyclin and Cyclin Dependent Kinase (CDK) work to control the cell cycle.