Autotrophs (or producers) capture the sun's energy through a process known as in specialized cell parts known as . This energy is converted and stored as . Then both autotrophs and heterotrophs use that energy to regenerate ATP. This is most efficient during the process of , which happens in a cell's .

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.

The body of water found at number 4 on the map above is the

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?