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devlian [24]
3 years ago
11

Where does the external respiration take place in pets?

Biology
1 answer:
lilavasa [31]3 years ago
4 0

Answer:

In mammals (like cat and dog pets), external respiration takes place by the exchange of gases in the alveoli of the lungs  

Explanation:

External respiration refers to the process of exchange of gases, i.e., oxygen (O2) and carbon dioxide (CO2), with the environment. In mammals like humans, dogs and cats, external respiration occurs in the millions of alveoli in the lungs and the capillaries that are located in the walls of the alveoli. This process (gas exchange) happens due to simple diffusion. The O2 is taken from the environment (by inhalation) and travels from the alveoli to the blood in the capillaries that surround the alveoli, while and CO2 diffuses from the blood capillaries to the alveoli (where this gas is exhaled).

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Compared to the amount of genetic information contained in a normal human body cell, the amount contained in a normal human sper
DIA [1.3K]

The  complete question is

Compared to the amount of genetic information contained in a normal human body cell, the amount contained in a normal human sperm cell is

A. the same

B.twice as much

c. one-half as much

D. one-fourth as much

One-half as much. Thus, option "C" is correct.

<h3>How, explain your answer?</h3>

The amount of genetic information contained in a normal human sperm cell (23 chromosomes) is one-half as much as the information contained in a normal human body cell (46 chromosomes).

Sperm cells are produced during meiosis, a specialized division process that reduces the number of chromosomes in half, generating haploid daughter cells.

Thus, option "C" is correct.

To learn more about chromosomes click here:

brainly.com/question/1596925

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2 years ago
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Ivahew [28]
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4 years ago
What is the complementary dna strand for AGC CAT GTA TAC
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Answer;

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Explanation;

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Answer:

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Explanation:

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