Some planktonic cyanobacteria (blue-green algae) have the ability to "fix" thus having a fertilizing effect on the marine environment (similar to the ability of legume plants found on land).

what following? you said which of the following. but there is no be more specific.

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain

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 darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.