Help i’m doing a quiz right now. Which of the following statements best explains why most
ecosystems will not have quaternary consumers?
a
There would not be enough energy to sustain a
quaternary consumer level.
b
Tertiary consumers are already very large animals;
their predators would have to be huge.
C
There would be too much competition for food for
any animals to survive as quaternary consumers.
d
An environment cannot support that many
organisms.

A

There would not be enough energy to sustain a quaternary consumer level.

Explanation:

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.