Answer:because it would change the world of life and how it spins connect to the living things
Explanation:
<span>Gills enhance diffusion between aquatic creatures' blood and the surrounding water. They have a large surface area to increase the area available for gas exchange and a lot of capillaries to increase the bloodflow through the gills. The cells in the capillaries are flattened, which further increases their surface area and the rate of gas exchange.</span>
Answer:
the best answer is b.) because they are not manufactured by the body
hope this helps and I'm bored
The intrinsic rate of the atrioventricular av bundle is 40 to 60 beats per minute (bpm).
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What is the Atrioventricular (AV) and the intrinsic rate?</h3>
Atrioventricular (AV) can be regarded as the block that usually altered the interruption of impulse transmission between the atria to the ventricles.
And this have the 40 to 60 beats per minute (bpm) as the intrinsic rate.
Read more on intrinsic rate here:
brainly.com/question/25545513
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