All of Earth's biomes considered together represent: A. population
B. community
C. biosphere
D. ecosystem

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

This is the process of making a prediction based on the results of prior observations of similar events.

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations