The nervous system communicates through electrical impulses and the communication is very fast. It works in a relay fashion, from point to point comparable to the way the old telephones systems used to work.
The endocrine system communicates by chemical signals via the bloodstream. Hormones are secreted into the blood and extra cellular fluids, then transported to target cells, which must bear a receptor to be able to bind to a specific hormone, and respond.
Hormones are chemical messengers secreted into blood or extracellular fluid that affect the function of other cells.
Endocrine communication is not quite as fast as the nervous system communication
There is 23 chromosomes in one gamete
energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels and nuclear power.
Biological macromolecules are synthesized by dehydration
synthesis reactions and are broken down by hydrolysis
reactions.
<h3>What are Biological macromolecules?</h3>
These are formed from smaller compounds and are necessary
for proper life functions of cells. Examples of these
macromolecules include:
Dehydration synthesis involves the loss of water molecules in
the process while hydrolysis reaction involves the addition of
water molecules.
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