What is the biggest contributing factor to the sustainability of an ecosystem? A. Biotic factors

B. Ecosystems

C. Predators

D. Biodiversity

D

Explanation:

Biodiversity is the variety of life (species, genes, etc) in an ecosystem. Therefore with less biodiversity the less stable that ecosystem will be. So the more biodiverse the more stable.

D. Biodiversity

Explanation:

Biodiversity is the biggest contributing factor to the sustainability of an ecosystem.

organisms that are both used in toothpaste as well as cause malaria are protista and monera.

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.