Cells without the correct antigen proteins are foreign and are tagged with for destruction.

a) lymphocytes

b) antibodies

c) antibiotics

Cells without the correct antigen proteins are foreign and are tagged with antibodies for destruction.

Option B

Explanation:

Whenever a foreign particle enters our body , our body’s own defense mechanism that is the immune system gets activated. This immune system comprises of certain antibodies that get tagged to the foreign moiety and takes it for destruction.

One more added advantage of these antibodies is that they remember the structure of the foreign particle that affected our body and thereby exerts double the force when the particle re-inters the body.

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.