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Marrrta [24]
3 years ago
7

Which atom is involved in giving your heart energy to beat?

Biology
2 answers:
Afina-wow [57]3 years ago
6 0

Answer:

Oxygen

Explanation:

The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.

brilliants [131]3 years ago
5 0

Answer: Oxygen

Explanation:

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AleksandrR [38]

photosynthesis!!!

Leaves from the plant absorb light from the sun. Leaves of plants also absorb the air that people breathe out, carbon dioxide

4 0
3 years ago
Please help me.. ty if you do
Katyanochek1 [597]

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I propose that this fungus somehow kills bacteria

Explanation:

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3 years ago
Identify a scenario where an experiment would be replicated
Vsevolod [243]

Answer:

If you did not follow the procedure as you should have.

Explanation:

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The most common scenario where an experiment would be replicated would be in a situation where you did not follow the procedure that you have outlined exactly like you should have so that the results you got are not 100% reliable. In such a case, the experiment would need to be replicated for the correct results.

I hope this answer helps.

3 0
3 years ago
Hypothesis A: If heart rate is related to caffeine intake, then coffee drinkers will have higher heart rates.
Katen [24]

Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.

Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.

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