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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

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3 years ago
Which two statements describe the
Goryan [66]

The two statements which describe the production of soy sauce.

Option A. When soy sauce is made, yeast and mold help break down the sugars to produce various acids.

Option F. To produce soy sauce, yeast and a type of mold are added to a  

mixture of soybeans, wheat, and salt.

Explanation:

Soy sauce is naturally prepared by artisanal brewing and fermentation. The basic ingredients used are soybeans, wheat and salt.

During the brewing process, microbes like mold, yeast or bacteria are added to the basic mixture to ferment. When mold is added to the basic mixture, it ferments and forms a mixture called koji.

Molds like Aspergillus soyae called the koji starter is commonly used. The enzymes present in the mold break the starch in the soy beans and wheat into simpler sugars, and proteins into amino acids, and fats into simpler lipids.  

The koji is then treated with yeast and lactic acid bacteria which ferments the koji and forms the moromi which is then processed further to form soy sauce.

The enzymes of the yeast converts the simple sugars into alcohol, CO2 and other organic acids and elements which enhance the flavor of the sauce. Lactic acid bacteria takes the role of converting the sugars into organic acids like aspartic and glutamic acid, and other amines.

6 0
4 years ago
Answer c gran telescopico canaris​
Wittaler [7]

Answer: okay what's your problem

8 0
3 years ago
Vertebrate span across a diverse array of life on earth today. Fish are the first to evolve and amphibians still live with stron
poizon [28]

Answer:

Fossil evidence shows that vertebrates made the transition from water to land during the <u>DEVONIAN</u> period.

<u>SALAMANDERS</u> are amphibians that most closely resemble early tetrapods in body form with a long tail and 4 limbs of similar length.

A distinctive characteristic of mammals that is not observed in other vertebrates is <u>ENDOTHERMY</u>.

By the end of the <u>CAMBRIAN </u>period, all major animal lineages were present in the seas due to a great adaptive radiation of animals.

The vertebrate lung first appeared in <u>AMPHIBIANS</u>

Explanation:

Vertebrates started to transition from water to land later in the Devonian period. The vertebrates had to adjust to living on land such as withstanding gravity, breathing in air, adjusting senses to living on land than on water, and significant water loss due to the new environment. This was a big step in the realm of evolution because vertebrates were now able to thrive because they are no longer limited to the resources and space of water.

Salamaders are said to have not evolved much and have some characteristics that resemble early tetrapods. Regeneration of limbs is one of the salamanders unique capability which early tetrapods possessed.

Amphibians are ectotherms, which means they get their energy outside their body or their source of heat would be the heat from the environment. Amphibians and reptiles are ectotherms, and mammals are endotherms. Endotherms can generate heat internally.

The Cambrian period marks the Cambrian Explosion. According to fossil records modern organisms evolved rapidly and soon after split into different phyla due to adaptive radiation as a result of the extinction of dinosaurs.

The evolution of lungs is one of the most important changes in vertebrates which allowed early amphibians of water to move to land. It enabled them to breath air.

5 0
3 years ago
What is 2^3 * 3^4 ? <br> A.162<br> B.324<br> C.468<br> D.648<br>ITSS MATH SORRY
DIA [1.3K]
2^3=8 and 3^5=81
8 x 81= 648
3 0
3 years ago
Read 2 more answers
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