Question

Match the following:

List - I	List - II
A) Morphine	IV) Pain killer
B) Cannabinoids	V) Dopamine
C) Cocaine	I) Cardiovascular system
D) Benzodiazepines	II) Tranquilizers

• A. A-I, B-III, C-V, D-II
• B. A-IV, B-III, C-V, D-I
• C. A-II, B-V, C-III, D-I
• D. A-I, B-IV, C-V, D-II

Hint:

Remember: \textbf{Phytoplankton} float freely (like \textit{Volvox}), \textbf{Nekton} actively swim (like \textit{Notonecta}), \textbf{Periphyton} are attached flora/fauna on submerged surfaces (grazed by snails), and \textbf{Benthos} live at the bottom (like \textit{Chironomid larvae}).

Answer 1

The Correct Option is A

A) Volvox — Phytoplankton (I): \textit{Volvox} is a colonial green alga and a typical phytoplankton found floating freely in aquatic ecosystems. B) Notonecta — Nekton (III): \textit{Notonecta}, commonly known as backswimmer, is an actively swimming insect belonging to nektonic fauna. C) Aquatic snails — Periphyton (V): Aquatic snails graze over submerged surfaces and are often associated with periphyton, the community of attached algae and microorganisms. D) Chironomid larvae — Benthos (II): \textit{Chironomid larvae} dwell at the bottom of water bodies, making them part of the benthos group.