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Oksanka [162]
2 years ago
12

Why do mammals require lungs? Provide 3 reasons.

Chemistry
2 answers:
AlekseyPX2 years ago
8 0
I can only find 2, I hope this helps

-To deliver oxygen to the cells of the body's tissues and remove carbon dioxide.
- The lungs also remove carbon dioxide from the blood. If carbon dioxide built up in a body, death would result.
nignag [31]2 years ago
7 0
All life respires, or breathes. Respiration in mammals is similar to respiration in other air-breathing animals. Respiration extracts oxygen from the air, which is then used by cells. Respiration also carries waste carbon dioxide away from the cells. Although respiration depends on other systems, like the circulatory system, to take oxygen and carbon dioxide to and from cells, the respiratory system has the primary responsibility of bringing oxygen in to a mammal's body and sending carbon dioxide into the atmosphere.

Mammalian respiration occurs in the animal’s respiratory system. A respiratory system is made up of muscles and airways that work to bring fresh air into lungs where oxygen is exchanged in blood for carbon dioxide. The airways are often lined with hairs or other structures that help to clean the air of dust and microbes before it enters the lungs.

Mammalian respiratory systems rely on a single large muscle at the base of the lungs. This muscle is called a diaphragm. The diaphragm pulls the lungs downward to increase their volume, causing air to rush into the lungs. As it presses upward, the lungs become smaller, and air is exhaled. Muscles in the rib cage work in consort with the diaphragm to expand and contract the lungs.
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Can someone help me on some of these question please : )
frez [133]
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4 0
3 years ago
Carboplatin (C6H12N2O4Pt) is a platinum-containing compound that is used to treat certain forms of cancer. This compound contain
givi [52]

Answer:

The answer to your question is:  $ 35.6

Explanation:

C₆H₁₂N₂O₄Pt

Platinum = 52.5 %

Price = $1047 / troy ounce

cost of platinum = ? of 2 g

1 troy ounce = 480 grains

1 grain = 64.8 mg

Process

Get 52.5 % of 2 g

                               2 g -----------------  100 %

                               x     -----------------  52.5%

                              x = (52.5 x 2) / 100

                              x = 1.05 g

                               1 g --------------------- 1000 mg

                               1.05 g ----------------   x

                               x = 1050 mg of Pt

                               1 grain ---------------- 64.8 mg

                              x            ---------------  1050 mg

                              x = 16.2 grains

                              480 grains ---------------- 1 troy ounce

                              16.2 grains ----------------   x

                               x = (16.2 x 1) / 480

                                x = 0.034 troy ounce

                              $ 1047 ------------------  1 troy ounce

                                x        -------------------  0.034

                                x = (0,034 x 1047) / 1

                                x = $ 35.6

3 0
2 years ago
The number 16 in carbon-16 stands for carbons
Oksanka [162]

Answer:

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Explanation:

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marta [7]

Answer: Matter

Explanation:

Matter is anything that has volume and/or mass.

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An aerosol can contains gases under a pressure
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Answer:

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