C. calcium is your answer
Parietal cells<span> also called oxyntic </span>cells<span> </span>
Answer:
It's the first option. After mitosis the cell breaks into two equal parts.
Explanation:
For ex: if a cell that has 18 chromosomes and goes through mitosis, then there'll be 2 cells with 9 chromosomes each.
Answer:
b) spontaneous reverse mutation
Explanation:
Spontaneous mutations are produced by natural biological processes, while induced mutations are produced by mutagenic agents that trigger nucleotide errors in the DNA sequence. In the first phase of the experiment, Sally generated an induced mutation by using 5-bromouracil. The resulting strain required a constant supply of tryptophan to grow.
A reverse mutation restores the wild-type phenotype modified by a forward mutation, thereby reversing the phenotypic alteration to its original state. In a second step of the experiment, the colonies grew without the supply of tryptophan, thereby evidencing that the mutation was reversed in the original colony.
Answer:
The distribution of organisms on the earth's surface is ultimately due to evolutionary change: Organisms or Species do not stay the same over time but are in a constant state of change as individuals. They are best able to live and reproduce within certain environments.
Explanation:
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