Acrayfish lives in a shallow pond along with frogs, turtles, various insects, and small fish. meadowsweet grows on the banks of the pond, which is rimmed with grasses and reeds. the pond would be considered the crayfish's
a) habitat
b) niche
c) home range
d) territory

(this could be all of these options : / but i can only pick one)

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.

the answer is sex-linked recessive.