Answer:
<em><u>Calcium carbonate </u></em>
Explanation:
<em>Coral reefs are made of thin layers of calcium </em><em>carbonate</em><em>. </em>
<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>
<h2><u><em>HOPE</em><em> </em><em>IT</em><em> </em><em>HELPS</em><em> </em></u><em><u>YOU</u></em><em><u> </u></em></h2><h2><em><u>PLEASE</u></em><em><u> </u></em><em><u>MARK</u></em><em><u> </u></em><em><u>BRAINLIST</u></em><em><u> </u></em></h2>
<em>^</em><em>^</em>
<em>U</em>
Answer:
b. Their presence is evidence of a defect in DNA replication, and therefore proof that a given disease is present
Explanation:
Single nucleotide polymorphisms (SNPs) result from point mutations and correspond to the position where there is alternation of nucleotides A, C, G, T at a minimum allele frequency of 1% in a given population. SNPs can be present in both coding and non-coding regions of the genome. As a nucleotide alternation is the result of a defect in DNA replication and these defects cause syndromes and diseases; we can say that single nucleotide polymorphisms are evidence of a defect in DNA replication and therefore proof that a particular disease is present.
<span>A effusive eruption</span> is the spreading of lava that pours out of a volcano.
Answer:
The correct progression of organisms on the planet is the ediacaran fauna-reptiles-mammals.
Explanation:
