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Elina [12.6K]
3 years ago
11

What happens when a person who is allergic to ragweed encounters ragweed?

Biology
1 answer:
slava [35]3 years ago
5 0
Ragweed antigens bind ragweed and then bind mast cells which release histamine 

<span>Allergies develop because of a Th2 response against the allergen. </span>

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PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
JulsSmile [24]

Answer:

most likely b, a population is many living with each other and not just one species

7 0
3 years ago
What are some ways that living things can be classified? What characteristics should we look at when putting living things into
ANTONII [103]

The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species. Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.

Hope this helps :)

7 0
3 years ago
Explain four treatment options for hazardous waste.
marusya05 [52]

Chemical methods--It includes ion exchange, precipitation, oxidation and reduction, and neutralization.........

Thermal methods--In this, high-temperature incineration, which not only can detoxify certain organic wastes but also can destroy them....

Biological treatment-- It is of certain organic wastes, such as those from the petroleum industry by a special method called landfarming

Physical treatment-- It concentrates, solidifies, or reduces the volume of the waste. Physical processes include evaporation, sedimentation, flotation, and filtration....

6 0
3 years ago
Higher Ultra-Processed Food Consumption Is Associated with Increased Risk of Incident Coronary Artery Disease in the Atheroscler
Eddi Din [679]

Yes, it is true that Higher Ultra-Processed Food Consumption Is Associated with Increased Risk of Incident Coronary Artery Disease in the Atherosclerosis Risk in Communities Study.

Objectives:

To test the hypothesis that higher intake of ultra-processed foods is associated with higher risk of coronary artery disease.

Methods:

A total of 13,548 adults aged 45-65 y from the Atherosclerosis Risk in Communities study were included in the analytic sample. Dietary intake data were collected through a 66-item FFQ.

Ultra-processed foods were defined using the NOVA classification, and the level of intake (servings/d) was calculated for each participant and divided into quartiles.

We used Cox proportional hazards models and restricted cubic splines to assess the association between quartiles of ultra-processed food intake and incident coronary artery disease.

Results:

There were 2006 incident coronary artery disease cases documented over a median follow-up of 27 y.

Incidence rates were higher in the highest quartile of ultra-processed food intake (70.8 per 10,000 person-y; 95% CI: 65.1, 77.1) compared with the lowest quartile (59.3 per 10,000 person-y; 95% CI: 54.1, 65.0).

Participants in the highest compared with lowest quartile of ultra-processed food intake had a 19% higher risk of coronary artery disease (HR: 1.19; 95% CI: 1.05, 1.35) after adjusting for sociodemographic factors and health behaviours. An approximately linear relation was observed between ultra-processed food intake and risk of coronary artery disease.

Conclusions:

Higher ultra-processed food intake was associated with a higher risk of coronary artery disease among middle-aged US adults. Further prospective studies are needed to confirm these findings and to investigate the mechanisms by which ultra-processed foods may affect health.

Learn more about ultra-processed foods is here : brainly.com/question/26511562

#SPJ4

3 0
2 years ago
Pre-leukemia myelodysplastic features in acute myeloid leukemia may include.
Alona [7]

Answer:

B) Hypogranular neutrophils

Explanation:

Myelodysplastic syndrome occurs due to a disordered production of blood cells in the bone marrow that die before they are even released into the bloodstream. This syndrome is of great clinical significance as they may progress to Acute Myeloid Leukemia. Generally, when this disease has pre-leukemic features it may include hypogranular neutrophils which is one is a feature of neutrophil dysplasia commonly observed in myelodysplastic syndromes.

6 0
3 years ago
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