Assertion (A): Fishes are ammonotelic. Reason (R): Ammonia is highly toxic and requires a large amount of water for excretion, which is available in aquatic environments. MCQ with Answer and Explanation
Assertion (A): Fishes are ammonotelic.
Reason (R): Ammonia is highly toxic and requires a large amount of water for excretion, which is available in aquatic environments.
A. Both A and R are true, but R is not the correct explanation.
B. A false, R true.
C. A true, R false.
D. Both A and R are true, and R is the correct explanation.
Answer: Option D
Solution (By JKExamLibrary)
Ammonotelic organisms excrete ammonia directly into water, which dilutes it. This is feasible for fishes. The reason correctly explains why they are ammonotelic.
Explanation:
Ethylene is a gaseous plant hormone that is widely known for its role in promoting the ripening of fruits. It increases the respiration rate during fruit ripening (climacteric rise) and breaks down cell walls, converting starches to sugars, making the fruit softer and sweeter. It is also involved in leaf abscission and the triple response in seedlings.
Explanation:
Glycogen is the storage polysaccharide in animals, highly branched, stored in liver and muscles. Starch is plant storage, cellulose plant structural.
Explanation:
ICZN stands for the International Commission on Zoological Nomenclature. It is the organization that establishes and maintains the International Code of Zoological Nomenclature, which provides the universal rules for naming animals to ensure stability and universality in scientific names.
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