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tigry1 [53]
2 years ago
9

How does the human immune system initially respond to a pathogen?

Biology
1 answer:
Lapatulllka [165]2 years ago
6 0

Answer:The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen.

Explanation:

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A client is admitted to the hospital with elevated temperature, chills, cough, and fatigue. The health care provider orders a ch
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Broad-spectrum antibiotics can cause antibiotic resistance.

Explanation:

  • Antibiotics are the substances that inhibit the growth of or kill the bacteria and hence, these are used as medications for the treatment of a lot of bacterial diseases.
  • These antibiotics can either be of broad-spectrum or the narrow spectrum.
  • The broad-spectrum antibiotics are the ones that are effective against a variety of bacteria, both gram-positive and negative whereas the narrow-spectrum antibiotics are the ones that target only a specific type of bacteria.
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3 years ago
In some coastal areas, the air temperature is high throughout the day. There is often precipitation in the late afternoon. Which
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B. Rain hope I helped
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3 years ago
3. Occasional droughts led to indigenous people fighting<br> over resources in:
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Need more info can’t really get an answer out of this sorry :/
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3 years ago
Which of the following statements about horizons is true?
Readme [11.4K]

Answer:

Your answer would be D.

They are defined by their different physical features.

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3 0
3 years ago
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Which of the following is NOT one of the functions of skeletal muscle? Which of the following is NOT one of the functions of ske
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Answer:

regulation of the diameter of blood vessels and control of blood pressure

Explanation:

Skeletal muscles are the multinucleated muscles with striations and are attached to the bones (skeleton). The main function of skeletal muscles is to generate the voluntary movement of the body or body parts. The skeletal muscles of face, rectum, and urinary bladder generate their voluntary movement as per the will of the organism. On the other hand, blood vessels are lined with smooth muscles with spindle-shaped cells.

For example, the muscles present in the subcutaneous layer of the skin of the face are responsible for various facial expressions. Contraction of these facial muscles brings about the movement of skin of the face to generate a wide variety of emotions. Smooth muscles of blood vessels are involuntary in nature.

Vasodilation and vasoconstriction as brought about by smooth muscles of blood vessels are regulated by the autonomic nervous system. Under the conditions of lower blood pressure, contraction of smooth muscles of blood vessels restore the reduced blood pressure. On the other hand, when the blood pressure rises above the normal range, the smooth muscles of blood vessels relax to dilate them and to lower down the blood pressure.

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3 years ago
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