I think the answer is "It's tightly packed cells allow for protection against harmful substances."
Blood is supplied to the muscular wall of the left atrium by the left coronary artery
Blood is considered a connective tissue that remains flowing continuously in the body and carries oxygen, nutrients, and hormones from one place to another place in the body.
It is pumped into the body equally through the heart which consists of four chambers and several valves and arteries which work in a coordinated manner to collect deoxygenated blood collected from the body and replace oxygen in it and pump it into the other parts of the body.
The left coronary artery (LCA), also known as the left main coronary artery (LMCA) arises from the aorta above the left cusp of the aortic valve and transports the blood to the left side of the heart muscle.
Learn more about blood flow in the body here
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Answer:
These shared features suggest that all living things are descended from a common ancestor, and that this ancestor had DNA as its genetic material, used the genetic code, and expressed its genes by transcription and translation.
Explanation:
Answer:
Acquired immunity is immunity you develop over your lifetime. It can come from: a vaccine. exposure to an infection or disease. another person's antibodies (infection-fighting immune cells
