Define the term allergens
Define the term allergens?
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Allergens are non-parasitic antigens. They are proficient of stimulating hypersensitive reactions in allergy situations in an individual.
What is artificial active immunity? Explain with example.
How are excretory systems of three major arthropod classes constituted?
Describe the two types of circulatory systems? Answer: The circulatory systems can be categorized into closed circulatory system and open circulatory system.
Write down the differentiation between the concepts of food web and food chain.
Explain presbyopia and astigmatism?
Write down the two groups which can nitrogen-containing bases which form DNA and RNA be categorized? What is the criterion employed in that categorization?
Write down the destination of notochord in protochordates and in vertebrates?
From zygote, pluricellular organisms are formed through serial mitosis. Had this formation be possible if every cell made by the mitosis had similar life in relation to antecedent cells? How the evolution did solve the problem?
How the vibration of sound is captured by the tympanum which is transmitted through the ossicular chain of middle ear?
Name the main compounds from which the mitochondrion structure is made?
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