According to the Frank-Starling law Select one:

a.
the more calcium available to the heart cell, the more forcefully it will contract.

b.
the faster the heart rate, the larger the stroke volume.

c.
as the volume of blood entering the heart increases, ventricular contractions become more forceful.

d.
the greater the resistance from the arteries, the higher the blood pressure.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

mark as brainlest

gokuson

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong