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

Always use significant figure rules. remember that these rules apply to all numbers that are measurements. if a vector that is 3 cm long represents 30 km/h, what velocity does a 5 cm long vector which is drawn using the same scale represent? a.100 km/h b.60km/h c.50km/h

Amouse that is homozygous for the dominant trait has the genotype . it has . a mouse that is homozygous for the recessive trait has the genotype . it has . image of fur color of mice

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.