cyanobacteria
it is one of the earliest organisms
The sympathetic nervous system releases two hormones within the body in response to stress, resulting in an adrenaline rush or a sense of urgency that occurs during stressful conditions. These hormones are called epinephrine. So it releases hormones to give you adrenaline in a bad situation or stressful one
Answer:
A retrovirus is an RNA virus that is duplicated in a host cell using the reverse transcriptase enzyme to produce DNA from its RNA genome. The DNA is then incorporated into the host's genome by an integrase enzyme. The virus thereafter replicates as part of the host cell's DNA.
1) D
2) B
3) C
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Answer:
AraI
Explanation:
<em><u>A</u></em><em>eromonas </em><em><u>ra</u></em><em>nidae</em> <u>I</u> (first enzyme isolated in that bacterium)