Cholesterol
The animal plasma membrane is a layer of phospholipids that is entwined with cholesterol and proteins. Cholesterol makes up a small part of the cell membrane's mass and it is present in every cell of the body. Cholesterol maintains the integrity of the cell membrane. It assists in the immobilization of the outer surface of the cell membrane and it reduces the permeability of the membrane to most biological molecules. Cholesterol also perform roles in cell signaling, maintaining fluidity and protecting important proteins in the membrane.
Eye lens center of the . optical nervous system reciprocal visual image into our eyes
Answer:
Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules.
Explanation:
Bottom feeders are aquatic animals that feed on the bottom of a body of a water. Crayfish is the bottom feeder. It is not active swimmer, it feed on stationary or slow pray, so it does not have such a streamlined body necessary to reduce drag during swimming. Its mouth is located on the underside of their heads and that way mouth is closer to the bottom where their food is.
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The answer is OCULOMOTOR NERVE.
<span>The oculomotor nerves are the motor nerves of the eye. In other words, they innervate the various ocular muscles and order them, if necessary, to contract to move the eyes, the upper eyelid ... There are three pairs of oculomotor nerves:
*The common oculomotor nerves.
*The pathological oculomotor nerves.
*The external oculomotor nerves.
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The answer could not be optic nerve because damages to this nerve cause cecity.
