Which of the following is an example of a Bryophyte? MCQ with Answer and Explanation

Explanation:
Earthworm (Pheretima) belongs to phylum Annelida, characterized by metameric segmentation (body divided into segments), a closed circulatory system, and setae for locomotion. Tapeworm is a platyhelminth (flatworm), roundworm is nematode (Ascaris), Planaria is a free-living platyhelminth. Annelids include polychaetes (Nereis), oligochaetes (earthworm), and hirudinea (leech).

Explanation:
The liver stores glycogen and produces bile. Insulin is produced by the beta cells of the pancreas. So 3 is incorrect.

Explanation:
Niacin is part of NAD⁺/NADH, which donates electrons to the electron transport chain to generate the proton gradient for ATP synthesis. All B vitamins contribute indirectly.