10. secondary succession occurs in an area where the community has been
destroyed and the soil has been
a compressed
b destroyed
c preserved
dremoved

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.

What is the problem in this article? what solution does the article propose?

Discuss cell surface transport in the structure of constituents