Draw a diagram showing how blood in the capillaries. surrounding tissue exchange respiratory gases with cells of the tissue label the following on this diagram : I) Tissue cell

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 of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

What is the similarities and differences between bacteria and eukaryote?