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4vir4ik [10]
3 years ago
6

Explain the role of the valves in the heart

Biology
1 answer:
beks73 [17]3 years ago
3 0

The valves in the heart make sure that blood goes in only one direction. For example, when blood is pumped from the left ventricle the mitral valve won't allow the blood to come back into the left atrium. And the aortic valve will prevent the blood from coming back into the left atrium from the aortic arch.

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long are W which means that they are stronger than the w trait of short.  

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your Punnett Square will look like this W     W  which means that 100% of  

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2)Heterozygous and a short will look like this  

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3)Now one is, (H) and two is, (h). Two Hybrid means that they are Heterozygous. This will make your Punnett Square look like this                              

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The two species of juniper can be said to be kept separate by <em>mechanical isolation</em>, due to the differences and incompatibility of their reproductive structure.

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