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Anna007 [38]
3 years ago
15

I am doing a test to see if there is a connection between how long you run and how fast your heart beats. I will be performing a

n experiment where a person will run for a 1 minute and I will check their heartbeat. Then they will run for 2 minutes and I will check their heart rate. I will do this up to 6 minutes and see if there is a connection. What do you think my hypothesis should be? What are my variables? Hypothesis: Independent variable: Dependent Variable:​
Biology
1 answer:
iris [78.8K]3 years ago
6 0

Answer: i don’t know a lot about this kind of stuff, but I guess the dependent variable would be the heartbeat, and the independent variable would be the person running

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Suppose you discover two interesting rare cytological abnormalities in the karyotype of a human male. (A karyotype is the total
sdas [7]

Answer:

1/8.

Explanation:

Karyotype may be defined as the visual appearance and the number of chromosome of the organism. Karyotype helps in studying the chromosomal abnormalites.

The human male has extra piece at chromosome 4. The abnormal pattern on the chromosome 7. The probability to inherit the defective chromosome 4 is 1/2, defective chromosome 7 is 1/2 and the probability of Y chromosome is 1/2. The probability of child to inherit all these chromosome is (1/2) × (1/2) × (1/2) = 1/8.

Thus, the answer is 1/8.

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3 years ago
How do crayfish swim
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Crayfish only swim backwards. Otherwise, the walk forwards

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3 years ago
Suppose that b(t)b(t) measures the number of bacteria living in a colony in a petri dish, where bb is measured in thousands and
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Answer:

To begin your question is incomplete, since it would be missing as many days as you want to pass to reach a certain number of bacteria ...

But I can explain to you that with what you put if you have the complete question in your notebook:

Bacteria are usually grown in petri dishes, which are glass capsules where you generate a perfect medium (culture) with all the necessary nutrients for them to live, grow and reproduce ... The bacteria we are talking about in this problem says that reproduce with an exponential of 3, this means that if there are 6000 bacteria today, we multiply that value by 3 and we already know how many there will be tomorrow (3x6,000 = 18,000), if we continue with the same analysis, the day after tomorrow there will be many more ... why? Because the account you would have to do is tomorrow's value multiplied by 3, that is, 18,000x3 = 54,000 !!!

Explanation:

It is important to know that growth with exponent 3 will always generate that the bacterial multiplication of each day is by 3, on the other hand, this serves to understand the magnitude with which bacteria populations grow, and with the rapidity that they do. .

So as a summary we would have to:

today you have 6,000 bacteria

tomorrow 18,000 bacteria (6,000x3)

the day after tomorrow 54,000 bacteria (18,000x3) ...

In just 3 days the bacteria reached a number of 54,000, now look in your folder what number of days your teacher asked you and continue with the account!

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3 years ago
What adaptation allows the Artic fox to survive in its environment?
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Answer: Arctic foxes have several adaptations that allow them to survive. Their round, compact bodies minimize surface area that is exposed to the cold air. Their muzzle, ears, and legs are short, which also conserves heat.

Explanation:

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Each enzyme has a temperature at which it works best. A slight increase in temperature can increase enzyme activity while a larg
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"The enzyme loses its shape and is no longer able to catalyze chemical reactions" is the one among the following choices given in the question that <span>best explains what happens when a protein becomes denatured. The correct option among all the options that are given in the question is the third option.</span>
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4 years ago
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