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1. What does metamerism mean in the context of the animal kingdom?

1.	Presence of a segmented body plan
2.	Ability to regenerate lost body parts
3.	Development from metamorphic larvae to adults
4.	Display of multiple types of symmetry during the lifecycle

2. How many pairs of the biological and common names of animals given below are correctly matched?

Sycon – Scypha;    Spongilla - Fresh water sponge;    Euspongia - Bath sponge;    Physalia -Portuguese man-of-war;    Adamsia - Sea anemone;    Pennatula - Sea-fan

1. 2
2. 3
3. 4
4. 5

3. Identify the incorrectly matched pair:
1. Radula – Molluscs
2. Malpighian tubules– Insects
3. Choanocytes– Sponges
4. Cnidocytes – Ctenophora

4.

Which is not correct about Ctenophora
1.Exclusive marine
2.Comb plates are present
3.Bioluminescent organism
4.Internal fertilisation present

5. Identify the incorrect match:
1. Porifera - Sycon, Spongilla, Euspongia
2. Cnidaria - Aurelia, Adamsia, Physalia
3. Platyhelminthes - Fasciola, Taenia, Ascaris
4. Echinodermata - Asterias, Antedon, Ophiura

6. Given below is a figure showing the worms which are the most common cause of helminthic infestation in the world.

1. A is male Ascaris and B is female Ascaris
2. A is female Ascaris and B is male Ascaris
3. A is male Wuchereria and B is female Wuchereria
4. A is female Wuchereria and B is male Wuchereria

7. Which of the following organisms exhibit metamerism, possess nephridia for excretion, and have a closed circulatory system?
1. Arthropoda
2. Mollusca
3. Platyhelminthes
4. Annelida

8. Identify the incorrectly matched pair:

1.	Pinctada	Pearl Oyster
2.	Aplysia	Sea hare
3.	Dentalium	Tusk shell
4.	Loligo	Devil fish

9. All the following are Cnidarians except:
1. Sea pen
2. Sea urchin
3. Sea fan
4. Sea anemone
 

10. Which statement accurately describes a feature of amphibians?

1.	Amphibians are exclusively terrestrial and breathe through lungs.
2.	Amphibians undergo metamorphosis from a larval stage to an adult form.
3.	Amphibians have scales and typically lay amniotic eggs.
4.	All amphibians have a four-chambered heart.