The postage stamp below shows the constellation orion. why would orion look odd to residents of the northern hemisphere?

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

Animals that have thick fur and ae able to store large amounts of body fat live where ?

Which feature would you expect to find in a population in which sexual selection depends on male competition?