Answer:
<em>B) Salmon evolved before kangaroos</em>
<em><u>Hope this helps!</u></em>
<em><u>Please mark brainliest!</u></em>
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What is cell specialization?
Answer: cell specialization is an adaptation to do a particular job in a cell
Answer:
C.
The reciprocal of the molar mass of limestone
Answer:
the answer is kick the hi what you doing
<span>The answer to this question would be: keep blood moving forward through the heart
When the ventricle contracts, the valve will plug the hole to atrium so the blood will be pump to the body. The valve in heart will prevent backflow of blood from ventricle to atrium which makes the blood keep moving forward.
A defect in valve could reduce heart deficiency as a part of the blood might be going back to the atrium, called regurgitation.</span>