Mutations. Definition. A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. A Mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed.
Answer:
protiens: amino acids
lipids: fatty acid and glycerol
carbohydrates: monosaccharides
nucleic acid: nucleotides
Explanation:
Answer:
The nervous system has two main parts:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
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Many different ways, primarily through bone and muscle loss. The lack of pressure on bones causes the body to reabsorb calcium from them, weakening them and potentially causing kidney stones.
