Emperor penguins huddle together during the antarctic winter months. once a penguin reaches the interior of the huddle he
a)remains on the interior to stay warm
b) moves back to the exterior to allow another individual the chance to warm
c)moves back to the exterior to find food
d)remains on the interior waiting for mate to
bring food to the interior
e) digest food

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.