How do the benefits of natural change to ecosystems compare to the disadvantages? a. the benefits are outweighed by the disadvantages. b. the benefits outweigh the disadvantages. c. the benefits are equal to the disadvantages. d. there are no disadvantages to natural change in ecosystems.

The correct answer is B.

Explanation:

Natural changes hold, volcanic activity, floods, dehydration, hurricanes, and earthquakes. They have benefits or deadly. Flood is a natural change that often considered as deadly or harmful but it has its own advantages like providing nutrients to the soil need nutrition and relocation of aquatic organisms in water bodies, which helps in developing the ecosystem.

Thus, the correct answer is option B.

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.