Passive transport permits the transported molecule to move in either direction, but the majority of transport occurs down the concentration gradient of the molecule.
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A. Producing red and white blood cells. The nervous system doesn’t do that.
Explanation:
There are two compositions in blood.
1. Plasma (55%)
2. Blood cells (45%)
Again Blood cells is divided into:
RBC ( Red blood cell)
It transports oxygen for respiration.
WBC ( White blood cell):
They help in the formation of antibodies to fight against germs and bacteria.
Platelets:
It plays major role in healing of the wounds.
Explanation:
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