1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vazorg [7]
3 years ago
10

How does an antihistamine reduce allergy symptoms? How does an antihistamine reduce allergy symptoms? a. An antihistamine binds

pollen antigens, preventing them from provoking an allergic reaction. b. An antihistamine blocks receptors for inflammatory chemicals released from granules within mast cells. c. An antihistamine kills mast cells, blocking an allergic reaction.
Biology
1 answer:
sattari [20]3 years ago
8 0

Answer:

b. An antihistamine blocks receptors for inflammatory chemicals released from granules within mast cells.

Explanation:

The mast cells situated at the body surfaces are responsible for alerting the immune system when a local infection is detected. This induces the secretion of inflammatory chemicals from granules within the mast cells once activated. Histamine is released which causes the blood vessels to expand and the skin to swell, thereby protecting the body. This leads to the production of symptoms like sneezing and rashes.

This allergic response to the perceived antigen is initiated as a result of the degranulation of the mast cell.

An antihistamine helps in stopping the histamine from affecting the cells in the body by blocking the receptors for the inflammatory chemicals released from granules within mast cells

You might be interested in
A species of mud snail was studied for five years. During this time, scientists observed the season in which they mated, the num
sergij07 [2.7K]

The correct answer is option B. The scientists were studying if the mud snails can reproduce both sexually and asexually. The characteristics in the study included parameters such as the mating season, number of offspring, effect of environmental stress conditions and lack of mates. Out of all the parameters being studied can affect asexual reproduction in the mud snail but lack or presence of mates is a parameter required to be studied to determine the mode of reproduction i.e. sexual or asexual because need for mates or mate dependent reproduction occurs in case of sexual reproduction.

5 0
3 years ago
Read 2 more answers
Which of the following would be the LEAST likely to be associated with the development of motion sickness? driving rapidly over
Setler79 [48]

Answer: Having a non-functional vestibular apparatus.

Explanation:

Motion sickness is a feeling of sickness that is caused by the movement. It occurs in a vehicle like boat, car, train or bus. It can also occur in the amusement rides. This is not life-threatening. It can make the ride or traveling unpleasant. Motion sickness happens when the brain receives the disturbing message related to the motion and the body's position. These messages are delivered from the ear, eyes, skin receptor, muscles and the joints sensors.

Among the options given, Having a non-functional vestibular apparatus. is not the associated with the development of motion sickness. The vestibular apparatus is associated with ear if the ear sensory system becomes non-functional then it will reduce the sensing of motion sickness.

5 0
3 years ago
Identify the relationship between structure and function of an organism and a cell:
tangare [24]

In multicellular organisms, the shape of the cell helps determine its function. For example, red blood cells are donut-shaped to easily exchange oxygen and freely pass through narrow blood vessels while nerve cells are long so when connected to other nerve cells they can span long distances in the organism

8 0
3 years ago
Prokaryotes are structurally simple creatures that have existed for over a billion years. Which of the following are prokaryotes
GrogVix [38]

Answer:

Bacteria

Explanation:

Jus took tha test

4 0
3 years ago
Read 2 more answers
Mammals whose young develop in a pouch on the mother's body are called
DaniilM [7]
The correct answer is: marsupials.

Marsupials are actually defined by their ability to hold the young in the pouches, where they can be well protected. Some examples are Kangaroos and Koalas.


Other answers are wrong: for example, gymnosperms are plants, not animals.

4 0
3 years ago
Other questions:
  • Why is radioactive dating important when approximately the age of earth
    14·2 answers
  • Which substance has a natural pH?
    8·1 answer
  • Why is water said to have a high "specific heat index"
    5·1 answer
  • Identify two ways in which you
    8·2 answers
  • What is basis for all scientific explanations
    12·1 answer
  • The presence of cholesterol in the plasma membranes of some animal cells _____. The presence of cholesterol in the plasma membra
    6·1 answer
  • ____ means finding a locations based on its distance from three other locations
    12·1 answer
  • A biologist discovers two populations of wolf spiders whose members appear identical. Members of one
    7·1 answer
  • this is an argument that makes an opposing point to another argument. it exspreses the view of a person who degrees with your po
    9·1 answer
  • A tornado forms as a result of thunderstorms, so tornadoes would most likely be found in a location where-
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!