Answer:
I think it's B
Explanation:
During QRS that's when the depolarization happens and when that happens the ventricles contract and push blood to the lungs and body.
The
correct answer is reverse transcriptase.
<span>
Reverse
transcriptase is an enzyme used to generate complementary DNA (cDNA) from an
RNA. This enzyme is often inserted together with eukaryotic mRNA into bacteria,
so that mRNA could be inserted into the bacteria's genome.</span>
The correct answer is protein.
Proteins are macromolecules composed of amino acids with the wide range of structures. Protein functions are diverse:
• structural proteins-maintaining the cell shape, (for example, proteins are structural elements in connective tissues like cartilage and bone in vertebrates),
• Enzymes - catalyze the biochemical reactions in cells-.
• Monitors- changing their activity in response to metabolic signals
• Part of the extracellular matrix or involved in intercellular communication…
