PrepBharat

1. Gastro-vascular cavity with single opening is found in
a) Porifera
b) Coelenterate
c) Aschelminthes
d) Annelida

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2. Coelenterates asexually reproduce by
a) Budding
b) Gametes
c) Conidia
d) Gemmules

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3. The larva stage shown by coelenterate is called
a) Amphiblastula
b) Parenchymula
c) Planula
d) All of these

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4. Match the following:
Column I        Column II
A. Physalia    –  1. Brain coral
B. Adamsia    –  2. Sea fan
C. Pennatula    –  3. Sea pen
D. Gorgonia    –  4. Sea anemone
E. Meandrina   –  5. Portuguese man-of-war
F. Aurelia     –   6. Jellyfish
a) A−5, B−4, C−2, D−3, E−1, F–6
b) A–5, B–4, C–3, D–2, E–1, F–6
c) A–5, B–4, C–2, D–1, E–2, F–6
d) A–5, B–3, C–4, D–2, E–1, F–6

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5. Ctenophores are commonly known as
a) Sea walnut
b) Comb jellies
c) Both (a) and (b)
d) None of these

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6.The following features belongs to which phylum?
(1) Exclusively marine
(2) Radial symmetry
(3) Diploblastic
(4) Tissue level organization
a) Coelentrata
b) Porifera
c) Ctenophora
d) Platyhelminthes

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7. Body bears eight external rows of ciliated comb plates present in phylum _____.
a) Coelentrata
b) Porifera
c) Ctenophora
d) Platyhelminthes

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8. Ctenophores show
a) Extra and intracellular digestion
b) Sexual reproduction only
c) Bioluminescence
d) All of these

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9. Example of ctenophores is
a) Pleurobrachia
b) Ctenoplana
c) Both (a) and (b)
d) None of these

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10. The following features belong to which phylum?
(1) Bilateral symmetry
(2) Triploblastic, Acoelomate
(3) Organ level of organization
(4) Dorsoventrally flattened body
a) Platyhelminthes
b) Aschelminthes
c) Annelida
d) Arthropoda

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11. Platyhelminthes are called flat worms because
a) They are triploblastic
b) They are without coelom
c) They have organ level of organization
d) Their body is dorsoventrally flattened

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12. Which of the following are characters present in platyhelminthes?
(1) Some absorb nutrients from the host directly through their body surface.
(2) Digestive system is incomplete, branched and without anus.
(3) Flame cells/solenocyte protonephridia help in the excretion and osmoregulation.
(4) Hooks and suckers are present in parasitic form.
(5) Hermaphrodites
(6) Fertilization is internal.
(7) Indirect development through many larva stages.
a) 1, 2, 3, 5, 6
b) 2, 3, 4, 5, 7
c) All except 1
d) All

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13.Which platyhelminthes posses high power of regeneration?
a) Planaria/Dugesia
b) Taenia
c) Fasciola
d) Liver fluke

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14. Flame cells helps in excretion and osmoregulation in
a) Earthworm
b) Hookworm
c) Roundworm
d) Tapeworm

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15. Internal fertilization is seen in
a) Pleurobrachia
b) Fasciola
c) Ctenoplana
d) All of these

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16. (1) Fertilization ______.
(2) Development ______.
(3) Excretion and osmoregulation by ______.
Fill in the blanks for organism given in the figure.

a) Internal, direct, rennett cells
b) Internal, indirect, flame cells
c) External, direct, nephridia
d) External, indirect, protonephridia

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17.Phylum whose organism are mostly endoparasites is
a) Platyhelminthes
b) Annelida
c) Arthropoda
d) Mollusca

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18. Which of the following are pseudocoelomate?
a) Roundworm
b) Hookworm
c) Filarial worm
d) All of these

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19. The body of the aschelminthes is circular in cross section. Hence, it is named as
a) Tapeworm
b) Earthworm
c) Hookworm
d) Roundworm

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20. Roundworms/Nematodes are
a) Free living
b) Aquatic or terrestrial
c) Parasitic on animals and plants
d) All of these

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