There is no pigment in the brain, so it is in it's natural colour, grey.
The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
Just as animals, plants also contain vascular<span> tissues (</span>xylem<span>), which transports water and minerals up from the roots to the leaves, and </span>phloem<span>, which transports sugar molecules, amino acids, and hormones both up and down through the plant</span>
Answer:
mitochondria because it provides the cell with energy
Answer:
Plasma
Explanation:
Plasma carries water, salts, and enzymes. The main role of plasma is to take nutrients, hormones, and proteins to the parts of the body that need it. Cells also put their waste products into the plasma. The plasma then helps remove this waste from the body.
