When AncestryDNA launched in 2012, we compared your DNA against 22 possible regions. We now have more than 1,500.
Answer:
Option A, by having a constant supply of blood
Explanation:
Blood that flows to the muscles bring oxygen from the atmosphere to the contracting muscles where it gets consumed. During large muscle exercise, two physiological needs arise – a) high and prolonged muscle blood flow and b) regulation of blood pressure so that there is adequate perfusion of pressure to all organs. In order to meet both the requirements, the blood flow increases so that the vasoligating muscles do not outstrip the cardiac output.
Hence, option A is correct
Answer:
its
"a heart on the run keeps a hand on a gun you can't trust anyone"
Answer
it refers on the variety of life on earth at all its levels from genes to ecosystems and can encompass evolutionary ,ecological and cultural processes that sustain life
<h2><u>advantages of conserving forests and wildlife</u></h2>
1.It protects the endangered species.
2.It preserves different kind of species
Explanation:
Answer:
D) largest mass extinction event in Earth's history
Explanation:
The cambrian era started following the pre-cambrian extinction
