Which of these is NOT an environmental concern related to the proposed sulfide mining operation? A) acid mine drainage B) heavy metal contamination C) water and soil contamination D) increasing pH in nearby water sources

The body is protected against harmful flu viruses by

Mutations associated with albinism affect proteins involved in synthesis

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.