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lesantik [10]
3 years ago
6

A person sprints across a football field to make the touchdown. The person’s muscles use up most of the oxygen in the blood to a

ccomplish this. Which response do you predict would happen because of this?
A. The pulse and breathing rate increases to provide more oxygen.
B. The blood pressure drops because of a drop in blood volume.
C. The muscles begin to use carbon dioxide to power contractions.
D. The heart rate decreases to give more time for oxygen to enter.
Biology
1 answer:
pashok25 [27]3 years ago
8 0

Answer:

C.

Explanation:

A lack of exercise is a major cause of chronic disease

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Stratovolcanoes seems to fit, but I do not know what the list of answer choices is. Hope this if helpful :)
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What is the difference between primary and secondary succession? Give an example of each.
Scorpion4ik [409]

Answer:

Some examples of primary succession include the formation of a new ecosystem after a volcano, glacier outbursts, or a nuclear explosion. Some examples of secondary succession include succession after a fire, harvesting, logging, or abandonment of land, or the renewal after a disease outbreak.

Explanation:

4 0
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How people often take vitamins needlessly or in excess, resulting in excretion in urine of water-soluble vitamins and potentiall
Katyanochek1 [597]

Water-soluble vitamin excesses are swiftly eliminated in urine and infrequently build up to hazardous amounts.

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The B vitamins — folate, thiamine, riboflavin, niacin, pantothenic acid, biotin, vitamin B6, and vitamin B12 — and vitamin C are the nine water-soluble vitamins. A clinical condition caused by a deficiency in one or more of these water-soluble vitamins can have serious morbidity and death effects.

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6 0
2 years ago
determine the ratio of average maximum elongation rate for the modified RNA polymerase compared to the wild strain RNA polymeras
Vinil7 [7]

Answer:

Check the c in the explanation

Explanation:

a) RNA has three components - 1) 5 - carbon ribose sugar (2) phosphate group (3) nitrogen base

RNA polymerase is an enzyme involved in transcription where genetic material DNA is transcribed into RNA ( mRNA,rRNA,tRNA).

b) the dependent variable here is what we are looking in the experiment , here it is number of nuceotides per second ,the transcription efficiency of RNA polymerase. And the two controls are important wild type without drug and experimental strain without drug these two tells about baseline of transcription rate of an enzyme. so that one can explain the drug effect on a enzyme.

c) In both wild type and exp strain upon treatment with amanitin the transcription rate decreased in exp strain it is not significant whereas in wild type the effect is much higher compare to exp strain and it is significant. this suggests that the mutation in experimental strain must be on larger subunit of the RNA pol enzyme. that mutation might be showing effect of binding drug to the enzyme and also has a role for its enzyme activity.

and the reduction of transcription rate is 100% efficient in wild type compared with exp strain.

d) a null hypothesis is a general statement in a statistics where there is no measured phenomenon between groups.

the change in the amino acid is an important clue, tells that there is no effect in transcription rate between experiment strain with and without drug . which in turn tells that the mutation is imp for the activity of the Enzyme for its role.

Kindly check the attached image below

4 0
3 years ago
Compare and contrast sexual and asexual reporduction
makvit [3.9K]

Difference:

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Now that you have the difference compare the similarties.

6 0
1 year ago
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