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kow [346]
3 years ago
8

Why are the lungs made up of these

Biology
1 answer:
STatiana [176]3 years ago
8 0

Answer:

because in a giant air sack, there would be no way for the capillaries to exchange gasses, and we would suffocate

Explanation:

the alveoli can only exchange one molecule at a time, they go from our lungs to our bloodstream and not mixing them up.

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Which of the following alternative engery technologies is most likey to be used to power a car?
puteri [66]

Answer:

The correct answer to the question is Biofuel

Explanation:

Biofuel can be used as an alternative energy technology source to power a car.

The importance of using biofuel is that it causes less air pollution than fossil fuels, and  it has less effect on the global warming. Most importantly, it is produced from agricultural sources.

The biofuels that can be used are butanol,ethanol and biodiesel etc.

Wind, geothermal and hydropower can not be directly used to provide power to the car.

Hence, the correct answer to the question is that biofuel which can be used as an alternating technology to provide power to car.

5 0
3 years ago
In what two ways did an understanding of geology influence darwin
Jobisdone [24]

Answer: Geology played a major role in Darwin's life and scientific work: The formation of volcanoes, the slow subsidence of coral reefs, the rising of the Andes by earthquakes, the fossil relatives to modern species in South America,

Explanation:

8 0
2 years ago
The correct functions of your lungs contribute to the normal pH level of between 7.35 and 7.45 in your blood. If your lungs do n
anzhelika [568]

Answer:

B

Explanation:

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7 0
3 years ago
A division happens in the next step. which describes the cells after the next step is complete ?
g100num [7]
I think it’s mitosis
7 0
3 years ago
Choose all the answers that apply. Extrusive igneous rocks _____. form on the surface form below the Earth's crust cool quickly
Anastaziya [24]
1. form on the surface    2. form below the Earth's crust    3. cool quickly    4. cool slowly    5. have large mineral crystals    <span>6. have small mineral crystals

those are your choices right? if so then...

1, 3, 5 are your answers
</span>
5 0
3 years ago
Read 2 more answers
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