Question

1.In which animal, nerve cell is present but brain
is absent?
(a) sponge
(b) earthworm
(c) cockroach (d) Hydra.
2.During the life-cycle, Fasciola hepatica (liver
fluke) infects its intermediate host and primary
host at the following larval stage respectively
(a) redia and miracidium
(b) cercaria and redia
(c) metacercaria and cercaria
(d) miracidium and metacercaria.
3.Which of the following disease is caused by a
nematode parasite?
(a) Poliomyelitis (b) Amoebiasis
(c) Filariasis (d) Leprosy
4.Natural parthenogenesis occurs in
(a) frog to form female
(b) honeybee to produce drones
(c) cockroach (d) snakes eggs.
5.Canal system is found in
(a) earthworm (b) sponge
(c) Hydra
(d) starfish
6.The largest type of nematocysts in Hydra are
(a) atrichous isorhiza
(b) penetrants (c) volvent
(d) holotrichous isorhiza.
7.Tube feet is the locomatory organ of
(a) crop fish (b) jelly fish
(c) starfish (d) silver fish.
8.Laurer's canal is present in
(b) Taenia
(a) Fasciola
(c) Ascaris
(d) cockroach.
​

Answer 1

1.d)Hydra

2.d)miracidium and metacercaria

3.c)filariasis

4.b)honeybee to produce drones

5.b)sponge

6.b)penetrants

7.c)starfish

8.a)Fasciola

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Answer 2

1.Hydra

2.Miracidium and metacercaria

3.Filariasis

4.Honeybee to produce drones

5.Sponge

6Penetrants

7.Starfish

8.Fasciola