Answer:
The cell membrane separates the external and internal environment of the cell. The cell membrane is composed of bilayer lipids, proteins and small amount of carbohydrates.
The lipid part is soluble in hydrophobic environment or with the hydrophobic part of other phospholipids because like molecules dissolve in like molecules. The hydrophobic part is non polar and hydrophilic parts is able to dissolve in polar area due to the interaction of same molecules with each other.
A threshold<span> ensures that </span>action potentials<span> are not produced unless the </span>neuron<span> has received enough </span>
No, Catfish are scavengers because they eat dead organisms.
Answer:
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