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zlopas [31]
3 years ago
15

Veins have a much lower blood pressure than arteries. Which of these prevents backflow of blood in veins?

Biology
1 answer:
serious [3.7K]3 years ago
6 0
<span>Most veins are equipped with valves to prevent regurgitation (reverse blood flow). The return of blood to the heart is assisted by the action of the skeletal-muscle pump, and by the thoracic pump action of breathing during respiration.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
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If the two traits that Mendel looked at in his dihybrid cross of smooth yellow peas with wrinkled green peas had been controlled
nalin [4]

Answer:

c. Would have deviated from the 9:3:3:1 phenotypic ratio

Explanation:

<em>If two genes are linked together on the same chromosome, the phenotype of the F2 generation would have deviated from 9:3:3:1.</em>

Two genes whose loci are close on the same chromosome are said to be linked. Linked genes have higher frequency of recombination than genes that are not linked.

<u>Hence, while genes that are not linked assort independently to produce 9:3:3:1 phenotypic ratio at F2, linked genes do not assort independently and the higher frequency of recombination ensures that they standard phenotypic ratio is deviated from.</u>

The correct option is c.

3 0
3 years ago
Your Hot Wheels car travels 120 cm in 1.34 seconds. What is its SPEED?
vladimir2022 [97]

Answer:

c) 89.55 cm/s

Explanation:

in this situation you have to divide to find the speed-

120/1.34 = 89.55223880...

closest answer is c

or rounded

89.55

hope this helps.

7 0
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jek_recluse [69]

Answer:

I think the answer is likely A

4 0
2 years ago
WHAT WILL BE GOOD ABOUT<br> ACHIEVING MY GOAL?
Alekssandra [29.7K]

Answer:

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777dan777 [17]

Answer:

Peptide bonds

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