Q.1.
In silkworm, silk is the product of
Q.2.
Pseudocoelom develops from
Q.3.
A phylum with triploblastic acoelomate animal is
Q.4.
Many molluscs have a water-testing organ present in the mantle cavity. This is called
Q.5.
Choanocytes are present in ….. of Leucosolenia
Q.6.
In hemichordates the dorsal nerve cord is
Q.7.
Which of the following is not a mollusca?
Q.8.
Pupa occurs in the life cycle of
Q.9.
In leech, hirudin is secreted by
Q.10.
Match the following
Column I( Locomotory Organ) Column II ( Phylum)
A. Pseudopodia p. Mollusca
B. Parapodia q. Chondrichthyes
C. Muscular feet r. Protozoa
E. Fins s. Annelida
Q.11.
Body having a meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
Q.12.
Find out the mismatch:
Q.13.
Spongilla is commonly called:
Q.14.
A bilateral larva transforms to radial adult in
Q.15.
In which of the animals rectum passes through pericardium?
Q.16.
Amongst coelenterates, Hydra is one of the smallest
Q.17.
Which molluscan group is primarily used in pearl production
Q.18.
Triploblastic unsegmented, acoelomate, exhibiting bilateral symmetry and reproduction both asexually and sexually and asexually, with parasitic forms belong to phylum
Q.19.
Which of the following traits is not characteristic of echinoderms
Q.20.
For class cephalopoda which of the following statement is incorrect:
Q.21.
Level of structural organization found in Hydra and Jelly fish is
Q.22.
Stomatochord is found in
Q.23.
Choose the correct combination
Q.24.
Match the following:
Column I Column II
Statocysts (a) Radiating plates
Radula (b) Respiratory function
3.Gills (c) Organ of balance
Cnidoblast (d) Anchorage, defence
- -  - - (e) Organ of feeding
- -   - - (f) Organ of locomotion
Q.25.
Match the following:
Column I Column II
a Physalia 1 Liver fluke
b Taenia 2 Sycon
c Fasciola 3 Tapeworm
d Scypha 4 Portuguese man of war
Q.26.
The diagram given below represents the two basic body forms of cnidarians (i) (a) represents polyp and (b) represents medusa. (ii) Polyp is sessile and cylindrical form while medusa is umbrella shaped and free swimming. (iii) Hydra and Adamsia represent poly form while Aurelia represents medusa form. (iv) Those cnidarians in which (b) body form is present alone belong to class Scyphozoa. (v) Obelia can show both (a) and (b) in their life cycle.
unit-1_ch-8_que_no-348_img_no1.png
Q.27.
atch list I with list II and select the correct answer with the help of answer code
List I (genus,phylum) List II( Larcastage)
A. Aurelia Parenchymula
B. Sponge Ephyra
C. Mollusca Trochopore
D. Plychaeta 4.Veliger
Q.28.
The infective stage of Ascaris is
Q.29.
The germinal layers of Limulus consist of:
Q.30.
Read the following statements: (i) Polyp is sessile and cylindrical form like Adamsia. (ii) Medusa is umbrella shaped and free-living like Aurelia. (iii) Polyp produces medusa sexually and medusa forms the polyp asexually in Obelia. (iv) Metagenesis is seen in jelly fish.