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andrew-mc [135]
3 years ago
11

The maintenance of a controlled, stable body environment.

Biology
1 answer:
DaniilM [7]3 years ago
6 0
This is called homeostasis

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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.

Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.

3 0
3 years ago
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What can the student conclude about her hypothesis based on the results?
solong [7]

Answer: The results will tell us about the correctness of hypothesis.

<u>Explanation:</u>

The Hypothesis is that explanation which is used as a starting of any investigation. The Hypothesis can or cannot be correct. We can test the hypothesis with scientific research.

Now a student can make conclusions about the hypothesis based on the results obtained. If results are the same as the hypothesis it means that our proposed explanation i.e hypothesis was correct but if the result differs than it means the hypothesis was not correct.

7 0
3 years ago
A mutation in a polypeptide with the original amino acid sequence of: Met-Ala-Gln-Arg-Glu-Leu results in a mutant with the seque
Nezavi [6.7K]

Answer:

This question lacks options, however, it can be answered based on general understanding of the topic

The answer is SUBSTITUTION MUTATION

Explanation:

A mutation is any change that occurs in the nucleotide sequence of a gene. Mutation can be of different types depending on how it occurs. One type of mutation is SUBSTITUTION MUTATION, which is a mutation in which one or more nucleotide base is replaced by another in the sequence.

Nucleotide bases are read in a group of three called CODON. Each of these codons specify amino acid. Hence, if the nucleotide base sequence is altered during mutation, the amino acid sequence is altered likewise. In this case where the original amino acid sequence is: Met-Ala-Gln-Arg-Glu-Leu, the mutation affected the nucleotide bases coding for Arginine (Arg), hence changing it to Glycine (Gly).

This means that a base substitution mutation occured, replacing the amino acid Arginine with Glycine in the mutated sequence.

6 0
2 years ago
BRAINLIESTTTT ASAP!!!<br> What is a homogenous mixture?<br> List some examples.
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<span>You can't pick out components of a homogeneous mixture or use a simple mechanical means to separate them. You can't see individual chemicals or ingredients in this type of mixture. Only one phase of matter is present in a homogeneous mixture.

</span><span>-Air

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-Rain water

-Vodka

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<span>
-Steel</span></span>
7 0
3 years ago
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Which of the following identifies three problems facing cloning?
Reil [10]

Answer:

A: low survival rates, abnormal development,and susceptibility to disease.

Explanation:

Hopefully this helps!

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