Answer:
A
Explanation:
The other answer choices are false and the three parts of the cell theory is
All cells come from other cells, all living things are made of one or more cells, and the cell is the fundamental structure of life.
The answer to your question is D. Reactants
<h2>Answer:</h2>
When the crossing over results in both mutant alleles on one chromosome and the other chromosome will be mutation free.
<h3>Explanation:</h3>
During the meiosis chromosomes are present in homologous form in a pair.
They exchange their genetic material with each other. This exchange is random and usually genetic material on the ends/telomere changes with the homologous chromosome.
In given condition the exchange is in such manner that the mutant allel of one chromosome shifts to other during crossing over. While other chromosome also contains its own mutant allele and does not exchange it during crossing over.
The worlds coral reefs are being damaged by harmful runoff, which new research shows it’s being caused by the clearing the forest. Scientist say that when the forest cover is lost, soil washes away into Rivers that flow into the oceans and, they believe onto coral reefs. that runoff adds nutrients to the ocean water.
A. Elevated land area that separates one watershed from another
