Surgical removal of the innermost layer of the artery is called

The excision of  the gland is Adenectomy (Aden means "gland" and ectomy means "surgical removal"). Removal of plaque (lipids and clots) that accumulate in the lining of an artery. Endarterectomy is a surgery to get rid of the adipose tissue plaque material, or blockage, within the lining of associate degree artery constricted by the buildup of deposits. it's administered by separating the plaque from the blood vessel wall.So, don't get confused with both the terms.

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask

The hawk receives 0.1% energy from the caterpillar although the caterpillar gets eaten by another bird smaller than the hawk first