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pochemuha
2 years ago
15

Explain two ways in which the alveoli are adapted to increase the efficiency of gas exchange​

Biology
1 answer:
erica [24]2 years ago
6 0

Answer:

Adaptations of the alveoli:

Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.

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Why do you suppose the united states still uses the english system for everyday measurements while almost every other country us
Alchen [17]
Answer:
Because the English measurement system has been in use for a very long time, it will be costly and time consuming to change from the English to SI units. Many technological measurements, products, and tools were developed in English units.

The cost of converting all measurements to SI units will be costly and will require a long period of time. Conversions between the English and the SI system of units appear to be more cost-effective than hardware changes.

Example:
It will be costly to convert designs for bridges, tunnels, locomotives, automobiles, and other hardware to the SI system. Although new designs are being performed in SI units, much useful hardware based on English units still remain.

Eventually, it is likely that complete conversion from English to SI units will happen, albeit slowly.
6 0
3 years ago
It is often argued that viruses are not living why
harkovskaia [24]

Answer:there always living

Explanation:

8 0
3 years ago
What do an ogre, an onion and the earth have in common? they have layers! how many layers does the earth have?
amm1812

The earth has layers and is composed of four layers. The four layers of the earth are namely, crust, mantle, the outer core and the inner core. The core in the layers of the earth serves as the central region. The mantle is the earth’s solid bulk in terms of its interior. The inner and outer core are composed minerals and are the third and fourth layer in the earth.

8 0
3 years ago
The first stage of cellular respiration (Glycolysis) occurs in _________.
harina [27]

Answer: Option B. Cytoplasm  

Explanation:

Cellular respiration is defined as the process in which sugar break down take place into as form and utilized by cell in the form of energy. In Cellular respiration food is utilized to create ATP and further used as energy source by using oxygen, and named aerobic respiration

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Glycolysis is the first stage of cellular respiration which takes place in cytoplasm or cytosol.

In the process of Glycolysis six-carbon sugar undergo chemical changes and converted into two pyruvates, each containing three-carbon organic molecule. ATP and NADH are formed in this reaction.

Hence, the process take place in cytoplasm.

4 0
3 years ago
The main function of the excretory system is to _______ the human body.
I am Lyosha [343]

Answer:

The main function of the excretory system is to <u>eliminate wastes from</u> the human body.

The kidneys remove waste from the <u>blood</u> .

The lungs remove <u>carbon dioxide </u>waste.

Explanation:

Hope this helps :)

5 0
3 years ago
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