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Mnenie [13.5K]
3 years ago
5

The normal number of spermatozoa per milliliter of semen in a male adult is approximately:

Medicine
1 answer:
Oxana [17]3 years ago
4 0

Answer:

The correct answer is d. 20,000,000 to 150,000,000

Explanation:

The normal number of spermatozoa per milliliter of semen in male adult is between 20 million to 300 million. If the sperm count is below 10 million per ml then the sperm count is considered to be low.

If the sperm count ranges between 20 million to 40 million per ml then it is considered as average sperm count. In this case doctors usually check the motility, size and shape of spermatozoa and if the motility is high then it is considered to be normal sperm count.

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Why might a person have amniocentesis done?
Lana71 [14]

Answer:

Amniocentesis is a process in which amniotic fluid is taken out from the uterus for the treatment or testing.  It is a fluid which surrounds and protects the baby during pregnancy. This fluid contains different fetal cells &  proteins.

Person may need an amniocentesis if doctor doubts that an unborn child has an anaemia or other infection. They may also suggest this in case of uterine infection. Its very much important, this procedure can also be performed to decrease the amount of amniotic fluid in mother's womb. Amniocentesis distinguish chromosomal abnormalities, defects of neural tubes & genetic defects. The most common chromosomal disorder is down syndrome or trisomy 21. Genetic disorders include cystic fibrosis. The most common neural tube defect is spina bifida.

Explanation:

3 0
3 years ago
What do urethritis, prostatitis, epididymitis, and orchiditis have in common?
aev [14]

Answer:

The correct answer is b. All of these conditions can be caused by sexually transmitted infections.

Explanation:

Inflammation of urethra is called urethritis which is mostly caused by bacterial infection. Neisseria gonorrhea and is the most common bacterial cause of urethritis. It is mostly transmitted sexually.

Prostatitis is the condition in which prostate gland swells due to sexually transmitted bacterial infection like Neisseria gonorrhea or Chlamydia.

Epididymis is a hollow tube that carries the sperm from the testes. When this tube swells due to bacterial infection mostly from Neisseria gonorrhea or Chlamydia then the condition is called epididymitis. Orchiditis is the swelling of testes due to epididymitis.

Thus, all can be transmitted sexually so the correct answer is b. All of these conditions can be caused by sexually transmitted infections.

5 0
3 years ago
What is the similarity and difference of anaerobic respiration and fermentation?
mamaluj [8]

Answer:

All organisms depend on the production of energy, in order to function. Most of them make use of glucose as the main material for extracting the necessary energy to survive. However, some of these organisms will use, or not need to use, oxygen, in conjunction with glucose, in order to be able to generte ATP, the molecule that is responsible for powering up a living organisms´ cellular activities. In order to achieve this formation of ATP, then, all organisms will need at least glucose present, and most, will require also the presence of oxygen, to generate ATP. The two mechanisms by which ATP is produced, then, are: aerobic and anaerobic respiration.

In similarities, these two processes have several. First, the two require a substrate to work with, which is glucose, or a source that can yield glucose molecules. The second is that both mechanisms are used to provide ATP to living organisms, and three, they both are ways to acquire energy.

However, there are also differences. The most important being that aerobic respiration requires not just glucose, but also oxygen, in order to produce ATP, while anaerobic respiration just needs glucose. The second most important is that anaerobic respiration yields much less ATP molecules than aerobic respiration. And the third difference is that while from the chemical reaction in aerobic respiration an organism gets water and carbon dioxide, the second reaction in anaerobic respiration yields lactic acid and also ethanol (fermentation).

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3 years ago
What is the core of forensic psychology ?​
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