If end diastolic volume (EDV) is measured to be 120 ml/beat and the end systolic volume is measured to be 50 ml/beat, the stroke volume would be .

70  ml/beat.

Explanation:

Stroke volume may be defined as the volume of the blood that are pumped by the left ventricle in one contraction. The blood output can also be determined by knowing the stroke volume.

The stroke volume can be calculated by the formula as follows:

Stroke volume =  End diastolic volume - End systolic volume

Here, end diastolic volume = 120 and end systolic volume = 50.

Stroke volume = 120 - 50

Stroke volume = 70 ml/ beat.

Thus, the answer is 70 ml/ beat.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.