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Arisa [49]
2 years ago
7

A day on Earth is approximately 24 hours, which is the amount of time it takes for Earth to complete one

Biology
1 answer:
KengaRu [80]2 years ago
3 0

Answer:

Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart. ... This occurs because the moon revolves around the Earth in the same direction that the Earth is rotating on its axis.

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Elias conducted an experiment about the effects of exercise on the heart rate of teenagers. Before morning basketball practice,
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The <u><em>correct answer</em></u> is:

He needs to select a more representative sample.

Explanation:

Choosing students from the basketball team for the sample he uses on a study of heart rates and exercise will be a biased sample.  This is because students on the basketball team are potentially healthier than other students, which means that exercise will not have a large an effect on their heart rate as it would if they were not as healthy and not as physically fit.

In order to reduce the amount of bias, he should choose students from different groups throughout the school.

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When a hydrocarbon chain is bent, it is called ____
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Unsaturated or saturated
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