What is the male sex cell that results from meiosis?

What are the two main phases of a cell cycle

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Which factor affects the force of gravity between objects? check all that apply. direction distance mass shape time