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kherson [118]
3 years ago
7

Why is a countercurrent system a more efficient system for gas exchange?

Biology
1 answer:
solong [7]3 years ago
8 0

Answer:

A countercurrent system a more efficient system for gas exchange. Because water is viscous, this would require a lot of energy, so the counter-current system is a more efficient way of increasing the amount of oxygen diffusing into the blood. The unidirectional flow of water is another advantage.

I hope you helped^_^

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Over the past few decades,earth scientist have developed the theory of plate tectonics.Why is this theory useful?
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3 0
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A series of two-point crosses, involving 7 genes (a-g), were carried out, and the following recombination frequencies were obtai
levacccp [35]

Answer:

Explanation:

Genes with recombination frequencies(RF) of 50 assort independently and are not genetically links together but gene that have less than 50 RF are genetically linked.

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Starting the order from the most tightly linked to the least

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8 0
3 years ago
The overall shape of a protein is mostly determined by …
madam [21]

Answer:

Explanation:

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8 0
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