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Irina18 [472]
2 years ago
5

Which of the following best explains why humans need constant supplies of fresh water? a. Humans need a constant supply of water

to provide them with essential vitamins. B. Humans need a constant supply of water to maintain proper hygiene. C. Constant supplies of freshwater are needed because body water is continually being lost. D. Constant supplies of freshwater are not actually necessary for survival. Please select the best answer from the choices provided A B C D.
Biology
1 answer:
alina1380 [7]2 years ago
8 0

Answer:

C. Constant supplies of freshwater are needed because body water is continually being lost.

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A 22-year-old man was in a motorcycle accident with resultant neck injuries that led to partial paralysis of the upper and lower
Arte-miy333 [17]

Answer:

We are given:

Minute Ventilation, MV = 6L/min

Respiratory Rate, RR = 30 b/min

PaO2 = 61mmHg

PaCO2 = 47mmHg

a) to find Tidal Volume, TV, we use:

TV = MV/RR

TV = 6/30

= 0.2litres => 200ml

For Alveolar ventilation, AV, we have:

AV = (Tidal Volume-dead space)×RR

AV = (200 - 150)×30

AV = 1500ml/min

The normal dead space value is 150ml.

Comparing both TV and AV with the normal values, it can be said that, since he has a TV of 200ml, he is defficient because a normal TV level is 500ml.

The man has an AV of 1500ml/min, which is low when compared to the normal AV value which is 4200ml/min.

2) The factor contributing to the deceased alveolar ventilation is the increase in PaCO2, in this case, the PaCO2 is 47mmHg, whereas the normal PaCO2 level is between 38-42mmHg

3) The muscle involved in this problem is the lower rib cage and thoracic cavity, while the nerve involved in this problem is the spinal cord.

4) The residual volume is decreased

5) Dyspenea simply means shortness of breath. It happens when a person experiences difficulty in breathing.

6) The cause of Dyspenea could be that the tidal Volume is lowered by the reduced diaphragmatic and intercoastal innervation or it could also be caused by chest trauma

7) The reflexes that causes tachypnea in this individual are the central and peripheral chemoreceptors. A individual has a PaO2 of 61mmHg and this low PaO2 causes the high breathing rate becauses peripheral chemoreceptors senses it and the medulla sends the signal out

3 0
3 years ago
Please help me with this question!!​ I really don't know how to do this?
salantis [7]

Answer:

I think C

Explanation:

piro magtanung ka sa iba para malaman no yung tamang answer kasi ako para saakin i C

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3 years ago
Drinking alcohol and using drugs are common means people use to escape a. the duplex mind. b. the phenomenal self (working self-
cestrela7 [59]

Answer: Self awareness

Explanation:

Drinking alcohol and using drugs are common means used by the people to escape from self awareness. One cannot be conscious after drinking alcohol or taking drugs.

If someone does not wants to face the reality and live in his virtual world then he should drink alcohol and take drugs.

The self awareness makes the person realize what he is doing is right or not but due to the effect of alcohol there is no self realization.

5 0
3 years ago
What determines the similarities in anatomical or physical features among organisms
gulaghasi [49]
I think it's a I think not so sure it's prombly not
4 0
2 years ago
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What location will enter darkness next as Earth's rotation continues ?​
Nataliya [291]

Answer:

well for me I think it's

Explanation:

the B

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