There are stretch receptors in the aorta and carotid arteries, and they are stimulated when blood pressure falls. if blood pressure falls, then the body would take measures to

i. make certain that the kidneys conserve water.

ii. produce urine that is clear and diluted.

iii. increase the water in blood plasma.

iv. decrease blood plasma volume.
a) i only
b) i and ii only
c) i and iii only
d) ii and iv only

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

Suppose that on a small island off the coast of scotland, 32 percent of the population has blue eyes, which means that these individuals must be homozygous for the blue eye color gene (bb). the only other eye color found on the island is brown, and individuals that are homozygous for the brown eye color gene (bb) or heterozygous (bb) will have brown eyes because brown is the dominant gene. assume this population is in hardy-weinberg equilibrium. if 100 babies are born next year, how many of these would you expect to have brown eyes and be heterozygous? a. 58 b. 49 c. 29 d. 43

Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. what can be inferred from these observations? monarchs must threaten and attack birds, but not wasps. monarchs have a way of discouraging bird predation that does not involve hiding. monarchs’ wings are so colorful that most birds must find them difficult to eat. monarchs lay more eggs than other less conspicuous butterflies.