Phylum Cnidaria

Q.

Comb plates are found in?

1. Adamsia

2. Pleurobrachia

3. Aurelia

4. Nereis

Q. Which one of the following living organisms completely lacks a cell wall?

1. Cyanobacteria
2. Sea - fan (Gorgonia)
3. Saccharomyces
4. Blue- green alga

Q.

Give two examples of Phylum Ctenophora.

Q. Which of the following pairs of animals is correctly matched with their body symmetry?

1. Hydra and Shark - Bilateral symmetry
2. Tapeworm and Octopus - Radial symmetry
3. Amoeba and Sea urchin - Asymmetry
4. Jellyfish and Starfish - Radial symmetry

Q.

How animals are classified based on symmetry?

Q.

An imaginary line or lines that can divide an animal into 2 or more equal halves is called as_____

1. Organisation

2. Symmetry

3. Segmentation

4. Asymmetry

Q.

Radial symmetry is observed in

1. Platyhelminthes

2. Coelenterates

3. Aschelminthes

4. Echinoderms

Q. Archegoniophore is present in ________

Q.

Body is covered with dry and cornified skin and epidermal scales in:

1. Mammals

2. Reptiles

3. Amphibians

4. Fishes

Q.

GNB contain an additional layer of

1. Phospholipids and lipopolysaccharides

2. Peptidoglycan

3. Amino acids

4. Glycogen

Q. Match the following:

Column I	Column II
A. Choanocytes	I. Platyhelminthes
B. Cnidoblasts	II. Ctenophora
C. Flame cells	III. Porifera
D. Comb plates	IV. Coelenterata

1. A-II, B-I, C-IV, D-III
2. A-II, B-IV, C-I, D-III
3. A-I, B-II, C-III, D-IV
4. A-III, B-IV, C-I, D-II

Q. Which of the following statements regarding coelenterates are wrong?
I. Cnidocytes are present on the tentacles and on the body
II. They are diploblastic and have cellular level of organisation
III. Polyp forms are free-swimming
IV. They exhibit metagenesis
V. Polyps produce medusae sexually and medusae form polyps asexually

1. II and IV only
2. III and V only
3. I, II and III only
4. II, III and V only

Q. Is amylose reducing sugar or non reducing sugar?

Q. Paragastric cavity of sponges is lined by

1. Chromocytes
2. Choanocytes
3. Pinacocytes
4. Amoebocytes

Q. Doris is

1. Marine mollusc
2. Fresh water mollusc
3. Terrestrial mollusc
4. Connecting link between molluscs and annelids

Q. The correct match is

(A) Venus flower basket	(i) Spongilla
(B) The glass rope sponge	(ii) Euspongia
(C) Fresh water sponge	(iii) Cliona
(D) Boring sponge	(iv) Hyalonema
(E) Bath sponge	(v) Euplectella

1. A - (v), B - (iv), C - (i), D - (iii), E - (ii)
2. A - (v), B - (i), C - (iv), D - (ii), E - (iii)
3. A - (v), B - (ii), C - (iii), D - (i), E - (iv)
4. A - (iv), B - (v), C - (ii), D - (i), E - (iii)

Q. Which of the following organisms has cell wall?

1. Mucor

2. Mycoplasma

3. Amoeba

4. Euglena

Q. How clitellum helps in process of fertilisation in earthworm

Q. Siphon of cephalopods is connected internally to

1. Mantle cavity
2. Anus
3. None of the above
4. Haemocoel

Q. Many Cnidarians have two distinct life stages called -

1. gametophyte and sporophyte
2. pupae and larvae
3. polyp and medusa
4. larvae and adult

Q. Classification of sponges is primary based on the

1. Body organisation
2. Body plan
3. Skeleton
4. Canal system

Q. Name the reproductive cells in sponges that forms gametes.

1. Myocytes
2. Choanocytes
3. Archaeocytes
4. Pinacocytes

Q. Venus flower basket belongs to Phylum

1. Porifera
2. Coelenterata
3. Echinodermata
4. Mollusca

Q.

what is abdominal cavity

Q.

Give one example of phylum Hemichordata.

Q. In Leucosolenia, digestion takes place in the

1. Paragastric cavity
2. Both A and B
3. Stomach
4. Food vacuole

Q. Evisceration is the characteristic of

1. Cucumaria
2. Echinus
3. Echinoarachinus
4. Neometra

Q. Slipper animalcule/Slipper organism is

1. Paramecium
   
2. Euglena
   
3. Plasmodium
   
4. Monocystis