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Inga [223]
3 years ago
15

9. Why it is advised to breathe through the nose only and not through the mouth?

Biology
1 answer:
prisoha [69]3 years ago
4 0

Answer: Because the nostrils are smaller than the mouth, air exhaled through the nose creates a back flow of air (and oxygen) into the lungs. And because we exhale more slowly through the nose than we do though the mouth, the lungs have more time to extract oxygen from the air we've already taken in.

10. You would have to put your face in front of the mirror because you would have to be positioned at a ratio of 1:1 sense it’s caved

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There is/are __ type(s) of extinction(s), __.
sweet [91]

Answer:

a) two/ darwinian and mass

7 0
4 years ago
An aponeurosis is​ a: A. ​cord-like structure that attaches the end of a muscle to a bone. B. sheet of connective tissue that at
Vladimir [108]

Answer:

B. sheet of connective tissue that attaches a muscle to another muscle or bone.

Explanation:

The aponeurosis are mainly made of collagen fibers and works as an  insertion to some skeletal muscles. The aponeurosis fibers can connects muscles to the bone or with another muscles connecting the aponeurosis fibers among themselves.

5 0
3 years ago
Both male and female gametes are created during the process of meiosis. The formation of male gametes or sperm is called spermat
Novay_Z [31]

Answer:

Both male and female gametes are created during the process of meiosis. The formation of male gametes or sperm is called spermatogenesis. After telophase II of spermatogenesis, there would be <u>four</u> male gametes created that are all genetically <u>haploid.</u>

Explanation:

Telophase II is the final step in Meiosis II. In Telophase II of the spermatogenesis chromosomes travels to opposite poles and are covered by a nuclear envelop.  The two parent cells result four daughter cells which are haploid (1n).  

3 0
4 years ago
When wind creates a sand dune, the sheltered side of the dune _____.
alukav5142 [94]

Answer:

is more steeply sloped than the windward side

Explanation:

The wind is the primary agent that moves the sediments and creates sand dunes in the deserts. When the wind starts to slow down it loses its power to carry the sediments so it starts to deposit them. As it does, a hill of sand is starting to form, called a sand dune. The wind will constantly be bringing new sediments, and the windward side is the one that gets them, while the leeward side doesn't. This results in the windward side to be much larger, but also to have much lower angle of fall, while the leeward side is having a very steep slope as it is constantly building on the top, but not the rest of it.

8 0
3 years ago
What is a similarity and a difference between the stars Rigel &amp; Betelgeuse?​
xxMikexx [17]

Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super-giant star compared to the sun.

hope this helps ^^

4 0
3 years ago
Read 2 more answers
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