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2 years ago

Which is a function of the testes?

Biology

1 answer:

myrzilka [38]2 years ago

8 0

Answer:

The testes are oval organs about the size of very large olives that lie in the scrotum, secured at either end by a structure called the spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm.

Explanation:

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Which is the order of airflow during inhalation?

Brums [2.3K]

The correct answer is B. Nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli

Explanation

The breath of living beings is divided into two processes, the first is inhalation and the second is exhalation. Regarding the first, it is the process in which the air is taken by the beings to be conducted to their lungs through their noses, passing through the nasal cavity, larynx, trachea, bronchi, bronchioles and finally alveoli where gas exchange occurs. The second process is the opposite, in which the air inside the lungs converted into CO2 is expelled, passing through the same places in an inverted manner, that is, alveoli, bronchioles, bronchi, trachea, larynx and nasal cavity. So, the correct answer is B. Nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli.

6 0

3 years ago

What is the most important mineral in a layer's diet and why? Has to do with chickens

lord [1]

Functional and economically most important mineral in nutrition of layers
is calcium, primary because of egg production, i.e. forming of the egg shell.

4 0

3 years ago

A mutation occurs at the midpoint of a gene, altering all amino acids encoded after the point of mutation. Which mutation could

goblinko [34]

Answer:

Deletion of two nucleotides.

Explanation:

Every amino acid coded by 3 nucleotides.

12:3=4 (amino acids)

6:3=2 (2 amino acids)

3:3=1 (1 amino acid)

After all of these mutations sequence amino acids change, but after continues stay the same.

Only deletion of 2 nucleotides will completely altered all amino acids encoded without mutation.

6 0

3 years ago

What role does H20 have in cellular respiration

Marizza181 [45]

Answer:

$H_{2}O$ or Water is a very important component of the cellular respiration. However, it does not act in the process of cellular respiration directly, but is produced at the end of the cellular respiration during Oxidative Phosphorylation or Electron Transport System.

Basically, what happens is during the stages ETS, the NADH and $FADH_{2}$ gets converted into NAD and FAD whereas the $H^{+}$ ion accumulates into the inter-membrane space, which then passes through the ATP synthase molecule from the inter-membrane space to the matrix thus, stimulating the ATP synthase molecule to produce ATP the most important product of cellular respiration. This $H^{+}$ ion when enters the matrix gets utilized to form $H_{2}O$ by getting bound to $O_{2}$ . But if no $H_{2}O$ is produced in the final stage and the $H^{+}$ ion gets accumulated in the matrix then the cellular machinery will malfunction and the production of ATP will stop. Thus, by this fact, we know that $H_{2}O$ has a very important role in cellular respiration.

8 0

3 years ago

Name and describe the role of each of the chambers in the rats heart. name the major artery and major vein connected to the hear

Nat2105 [25]

Easy:

The four chambers of the heart are the right and left atria, and the right and left ventricles. The main veins connected the heart are the superior and inferior vena cava, the main artery is the Aorta.

The first chamber, (the right atruim) recieves deoxygenated blood and forces it into the right ventricles which forces the blood into the lungs for oxygenation. Then the blood reenters the heart in the left atrium, which forces the blood into the left ventricle and then out the Aorta to the rest of the body.

sorry, but this question needed kind of a long answer to be answered correctly.

4 0

3 years ago