If salinity increased at the poles, the water near the poles would A. decrease in density, so it would sink more
slowly
B. Increase in density, so it would sink more
rapidly
C. decrease in density and become water
vapor
D. increase in density and become water
vapor

Agene in a type of bacteria when the ses bacteria reproduce asexually this mutation can only be inherited by

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

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