Botany · NEET 2024 Deleted Syllabus

NEET (UG) 2023 — Question 171

Which of the following statements is correct?

Option A:
Biomagnification refers to increase in concentration of the toxicant at successive trophic levels.
Correct
Option B:
Presence of large amount of nutrients in water restricts ‘Algal Bloom’
Option C:
Algal Bloom decreases fish mortality
Option D:
Eutrophication refers to increase in domestic sewage and waste water in lakes.

Answer: A

Increase in the concentration of the toxicant at successive trophic level is called biomagnification.

Large amount of nutrients in water promotes growth of algal bloom. Algal bloom increases fish

mortality. Eutrophication refers to the natural aging of a lake by nutrient enrichment of its water.

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