Answer:
immediate hypersensitivity is a correct answer.
Explanation:
Allergy to pollen is classified as immediate hypersensitivity.
Immediate hypersensitivity is a type I hypersensitivity induced by an antigen called allergens like dust, pollen grains, etc.
Immediate hypersensitivity is a type of allergic reaction.
It occurs through the exposure to allergen by inhalation, through direct contact or by ingestion.
Thus Allergy to pollen is classified as immediate hypersensitivity and it is IgE mediated allergic reaction.
Biological reactions can be classified as being of two main types: anabolic and catabolic. Catabolic reactions involve the break down of a larger molecule to release energy and smaller molecules; meanwhile, anabolic reactions are the opposite such that they involve the combination of molecules while consuming energy to form larger molecules.
Muscle growth is anabolic because polypeptides are formed using amino acids and energy.
The most important role of bacteria in the environment is as decomposers.
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Bacteria as decomposers:</h3>
A decomposer is a living thing that gets energy by breaking down dead plants and animals. In order for other species in the food chain to be able to use nitrogen, decomposer bacteria must first be able to fix nitrogen in the soil. In particular, the bacteria convert atmospheric nitrogen into plant-useful compounds like ammonia, nitrate, and nitrite.
There are four functional categories for bacteria. The majority are decomposers that eat simple carbon compounds like fresh plant litter and root exudates. By doing this, bacteria transform the energy found in soil organic matter into forms that the other creatures in the soil food chain can utilise.
Learn more about decomposers here:
brainly.com/question/22516751
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