How are cells organized in complex organisms? List the levels of organization in animals such as humans.

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.

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

In general, are there any major differences that you can see? explain