Answer:
If there are no animal cells, then life on earth would not exist. Also plants would dominate.
Explanation:
The apocrine glands.
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Answer:
a <u>Substitution point</u> mutation changes one base in the genetic code. Only one <u>nucleotide</u> may or may not be affected. An insertion or deletion causes a <u>frameshift</u> mutation which affects all the amino acids following the mutation.
Explanation:
In biology, the inner lining of tubular structures is called a lumen.
This can refer to numerous tubular structures in the body, such as the lumen of the veins and arteries, the lumen of the intestines or the tubes in the kidneys.
This term can also be used to describe a space defined by membranes of cell organelles such as the lumen of the mitochondria, the Golgi apparatus, and others.