What would most likely decrease the genetic variation in the human population?

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

If t=tall and t=short what is the likelihood that the offspring will be tall? a.0% b.25% c.50% d.75%

If one were to horizontally divide the earth in half at the equator each half would be a