How do an increase in the organic matter in soil and an increase in soil depth affect the population of plants in an area?
A Larger plants become the dominant organisms.
B Mosses replace flowering plants.
C Nitrogen-fixing bacteria kill young trees.
D Grasses become diseased.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Modern whales developed their traits through natural selection what occurs during the process of natural selection

3differences between bacteria and other 2 cells