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kramer
3 years ago
14

Why do you think your immune system sometimes fails and we get sick anyway?

Biology
1 answer:
Natali [406]3 years ago
5 0

Answer:

If you've noticed that you're often sick, feel fatigued or have other nagging symptoms you can't figure out, it may mean your immune system is weakened (OwO)

Explanation:

Your immune system can also be weakened by smoking, alcohol, and poor nutrition. AIDS. HIV, which causes AIDS, is an acquired viral infection that destroys important white blood cells and weakens the immune system. People with HIV/AIDS become seriously ill with infections that most people can fight off.

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Match the following organs and organ systems. 1.digestive system brain 2.central nervous system tracheal system 3.respiratory sy
Amiraneli [1.4K]

The correct macthing of the organs with their organ systems is as follows.

1. Digestive system - intestines.

2. Central nervous system - brain.

3. Respiratory system - tracheal system.

4. Excretory system - bladder.

Digestive system is made up of the alimentary canal consisting of the digestive organs and the glands. Among the digestive organs, the intestines play a major role in the process of digestion. The small intestine is the site of complete digestion which is associated with the pancreas and liver. The large intestine is involved the absorption of water from the digested food and remaining waste material is stored and thrown out of the body during defecation.

The central nervous system is made up of the brain and the spinal cord. The brain makes the largest part and the functional of the central nervous system. It controls most of the activities of the body. It is made up of three parts called the cerebrum, cerebellum and medualla oblongata and is protected by the skull.

The respiratory system is divided into the upper respiratory tract consisting of the nasal cavity, pharynx and larynx, and the lower respiratory tract consisting of the trachea, bronchi, bronchioles and the alveoli. The trachea or the wind pipe is a cylindrical tube infront of the oesophagus, supported by 16-20 C-shaped hyaline cartilage. It serves as a passage for air to move in and out of the lungs.

The excretory system is made up of a pair of kidneys, a pair of ureters, an urinary bladder and an urethra. The urine produced by the kidney flows through the ureters and is collected in the urinary bladder. A spinchter (a ring of muscle) guards the opening of the bladder into the urethra and relaxes only at the time of urination under the impulse from the brain.

6 0
3 years ago
What is the term for the discipline of dealing with the diagnosis and treatment of defective eye coordination, binocular vision,
Vsevolod [243]
<span>The correct answer is orthoptics.</span>
<span>Orthoptics is a profession of eye care that do things such as diagnosis and non-surgical management of strabismus (wandering eye), amblyopia (lazy eye) and eye movement disorders. Orthoptists are trained professionals who are uniquely skilled in diagnostic techniques.</span>
4 0
4 years ago
Which ocean movement do power plants use to produce unusable energy?
-BARSIC- [3]

Answer:

Tides

Explanation:

The intensity of the water from the rise and fall of tides is a sort of kinetic energy, and tidal energy is generated by the movement of our tides and seas. Gravitational hydropower, which uses the flow of water to drive a turbine to create energy, is surrounded by tidal power.

8 0
2 years ago
What happens when an external stimulus invades an organism internally?
wlad13 [49]
"It normally elicits or influences a reflex via stimulus transduction."
4 0
4 years ago
Read 2 more answers
George, who is 60, couldn't understand why he was slowly gaining weight. He was eating the same amount of food that he had each
Dennis_Churaev [7]

Answer:

A.

Explanation:

As we age our metabolism tends to slow down.The basal metabolic rate decreases almost linearly with age.

Energy requirement in old people tend to get less because of less physical activity.If energy intake, on the other hand, exceeds individual energy needs, fat accumulates in the body

5 0
3 years ago
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