Question

1. Organ system level of organization is found in animal phyla

a) Higher than aschelminthes b) Higher than platyhelminthes

c) Higher than annelida d) Between porifera and chordata

e) Between platyhelminthes and echinodermata

2. Select the set of animals having a true coelom

a) Ascaris, Pheretima, Taenia b) Fasciola, Neries, Rhabditis

c) Wuchereria, Enterobius, Ancylostoma d) Schistosoma, Sphenodon, Hemidactylus

e) Aphrodite, Terebella, Tubifex

3. Chordates and echinoderms are

a) enterocoelomates b) schizocoelomates c) haemocoelomates

d) acoelomates e) pseudocoelomates

4. Diagrammatic representation of cross section of gastrula is given below.

Identify the sketches that belong to Ascaris,

Earthworm and Planaria respectively,

a) A, C and B

b) B, A and C

c) C, B and A

d) B, C and A

e) A, B and C

5. Select the set of animals having a pseudocoelom

a) Ascaris, Wuchereria, Rhabditis b) Fasciola, Neries, Rhabditis

c) Wuchereria, Enterobius, Ancylostoma d) Schistosoma, Sphenodon, Hemidactylus

e) Aphrodite, Terebella, Tubifex

6. Totipotent cells of sponges and cnidaria are respectively

a) archaeocytes and interstitial cells b) interstitial cells and archaeocytes

c) pinacocytes and choanocytes d) scheroblasts and collencytes

e) colloblasts and chromocytes

7. Ctenophora is not characterized by

i) aboral sense organ ii) tentacles with colloblast cells

iii) mesoglea with amoebocytes and smooth muscle cells

iv) Body wall with cnidoblasts

v) Branched gastrovascular cavity opening to exterior by stomodaeum

a) only i and ii b) all except iv c) all except iii d) only i and iii e) all are true

8. Select the wronly matched pair

a) Proterion- Neptune’s cup b) Euplectella-venus flower basket

c) Euspongia- bath sponge d) Cliona- boring sponge e) Chalina- rope sponge

P l u s O n e Z o o l o g y A s si g n m e n t 1 0 0 Q u e st i o n s

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Answer 1

Explanation:

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Answer 2

Answer:

1:b

2:d

3:a

4: diagram is nt available

5:c

6:a

7:d

8:e