Number of cells in human compare to the number of bacteria cells on a human being

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.