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sertanlavr [38]
3 years ago
8

Which statement describes the condition of the heart at the point indicated in the electrocardiogram?

Biology
1 answer:
wariber [46]3 years ago
5 0

Answer:

I think it's B

Explanation:

During QRS that's when the depolarization happens and when that happens the ventricles contract and push blood to the lungs and body.  

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netineya [11]
The mutagens that result in cancer damage DNA by (b) weakening the DNA strand or interfering with base pairing. This mutagens are called carcinogens, if they cause a damage to <span>a gene that makes a </span>DNA<span> repair protein, it means that a cell will have less ability to repair itself, and ,as a result, this will lead to formation of cancer.</span>
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Which animal is native to a different part of the world than the other two? walrus polar bear penguin.
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<h3>What is native species?</h3>

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5 0
2 years ago
Very low concentrations of detergent make membranes leaky to small molecules and ions without damaging proteins. In isolated mit
Grace [21]

Options

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Answer:

B. No, because with a leaky membrane, the proton gradient cannot be maintained

Explanation:

The proton motive force (PMF) provides the needed pump  to generate electrochemical gradients of proton needed for continue influx  into the matix of the mitochondria. The proton Influx generates the energy needed by  protein ATPase Synthase for  synthesis  of ATPs by adding inorganic phosphate to ADP to give ATP.

               ADP + Pi -----------→ ATP.

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3 years ago
Imagine an exercising muscle cell that requires a constant supply of oxygen to avoid fatigue. At which of the following distance
KiRa [710]

Answer:

b. 100nm

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