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
Sloan [31]
2 years ago
6

Explain the process by which an attack of hay fever follows exposure to pollen

Biology
1 answer:
Bezzdna [24]2 years ago
4 0

<span>Hay fever is a manifestation of allergic reaction from pollen, which is prevalent during haying season. Hay fever is commonly known as allergic rhinitis caused by an oversensitive immune system, particularly the lymphocytes, leading to a misdirected immune response. The body undergo a sensitization when one develops IgE antibodies and develop a strong TH2 response against pollen. Then, this newly develop IgE antibodies sticks to basophils and mast cells with no signs and symptoms yet. However, when one is expose again to pollens, mast cells will be activated and release mediators who are responsible for immediate vascular and smooth muscle reaction. After this, local clinical manifestation of hay fever will be observed. </span>

You might be interested in
Yall i need helpp asappp plss​
Amiraneli [1.4K]

Answer: The acceleration of that object

Explanation:

6 0
2 years ago
Why are gametes made through meiosis, rather than mitosis?
Valentin [98]
This is because meiosis <span>produces spores that are used for reproduction and can form similar copies to </span><span>the parent cell.</span>
6 0
3 years ago
What is the correct procedure for students to follow if a chemical is spilled?
iogann1982 [59]
Splash large amounts of water to dilute the spill. Stand back and advise the teacher of the spill. Immediately ask to go to the restroom.
4 0
3 years ago
Which life cycle describes a plant that reproduces asexually and sexually? A. egg + sperm → embryo → adult with all its chromoso
Minchanka [31]
Life cycle describes a plant that reprodueces asexually and sexually.
4 0
2 years ago
What was the ecosystems carrying capacity for Buffalo based on the graph once rinderpest was eliminated
Yuki888 [10]

Answer:

60,000 buffalo

Explanation:

This question is incomplete, I attached the options.

35,000

55,000

60,000

65,000

Buffalo numbers in the study area were estimated using total aerial photographic counts, the estimation was made it in Mara Serengeti ecosystem (25 000 km2), buffalos have other problems apart of bubonic plague, like climate change, competition, disease, food limitation, land-use change, predation.

Assume the population growth of Serengeti buffalo graph, before the rinderpest there was a capacity of 50,000 buffalos, but there was a bubonic plague epidemic, then two years and half, only there were a capacity less than 30,000.

After the virus was eliminated the graph show growth, in 6 years there were more than 60,000 buffalos, in more eleven-year, there were exactly 60,000 buffalos.

7 0
3 years ago
Other questions:
  • Help i cant figure this out
    11·1 answer
  • Which chemical shown in figure 8-3 is an electron carrier molecule
    5·2 answers
  • Banana plants grown for food crops are the result of asexual reproduction. Does the genetic information of each plant come from
    7·1 answer
  • You are getting ready to carry a firearm on a boat. What is the first step you should take? Put the firearm's safety on. Hand th
    10·1 answer
  • Which of the following method of reproduction is common to paramecium and amoeba? (A) conjugation (B) sexual reproduction (C) bi
    6·2 answers
  • Who is a gynaecologist
    13·1 answer
  • Compare and contrast aerobic and anaerobic reactants
    11·1 answer
  • For each of the following factors, indicate whether the pH increases or decreases and explain why the factor may cause variation
    6·1 answer
  • The most diverse and prevalent organisms on earth are
    6·2 answers
  • Where is food stored in non endosperm seed?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!