Identify and define the root in the following term.

In the first drop-down box, select the root in the following term. Then, in the second drop-down box, identify the meaning of that root.

pericardium

Although the drop-down boxes are not shown, I will answer the question as follows:

The etymology of the word pericardium comes from the Greek perikardion; Greek prefix "peri" meaning "around" and the suffix "cardio" meaning "heart"

With this information you can solve the question.

Explanation:

The pericardium is a double layer where the heart is lodged. It has two membranes: the fibrous pericardium and the serous pericardium. The fibrous pericardium is formed by connective tissue. Its function is to protect the heart from the outside, it also allows you to join it with the heart cavity. While the serous pericardium is a bag where the myocardium is lodged. It consists of two layers: the visceral layer, joins the heart muscle, and the parietal layer, attached to the serous pericardium.

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.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.