Biology Class 12 Chapter 2 in Hindi. We covered all the Biology Class 12 Chapter 2 in Hindi MCQs in this post for free so that you can practice well for the exam.
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Biology Class 12 Chapter 2 Objective in Hindi for Students
The animal's body belonging to Phylum-Mollusca is divided into:
(a) Head, thorax, and abdomen
(b) Head, muscular foot, and abdomen
(c) Head, thorax, and visceral hump
(d) Head, muscular foot, and visceral hump
Option d - Head, muscular foot, and visceral hump
The generic name of tusk shell or elephant tusk shell is:
(a) Dentalium
(b) Chaetoderma
(c) Chiton
(d) Neoplina
Option a - Dentalium
The characteristic feature of Phylum Echinodermata is:
(a) Radial symmetry
(b) Water vascular system
(c) Mantle cavity
(d) All of the above
Option b - Water vascular system
Which one of the following statements is not correct?
(a) All echinoderms are viviparous.
(b) Roundworm has no circulatory system.
(c) In bony fishes, a swim bladder is usually present.
(d) In cartilaginous fishes, fertilization is internal.
Option a - All echinoderms are viviparous
Choose the animals that belong to Phylum-Echinodermata from the options.
(a) Sea urchin, cuttlefish, and sea lily.
(b) Echinus, sea hare, and sea cucumber
(c) Antedon, Ophiura, and Echinus
(d) Ophiura, Chaetopleura, and Echinus
Option c - Antedon, Ophiura, and Echinus
Excretory organs in echinoderms are:
(a) Nephridia
(b) Green glands
(c) Flame cells
(d) None of these
Option d - None of these
Which of the following phyla has no freshwater forms?
(a) Echinodermata
(b) Mollusca
(c) Chordata
(d) Porifera
Option a - Echinodermata
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