Body Cavity

Q.

What are diploblastic and triploblastic?

Q.

Which of the following statements is incorrect?

(a) Mesoglea is present in between ectoderm andendoderm in Obelia

(b) Asterias exhibits radial symmetry an

(c) Fasciola is pseudocoelomate animal

(d) Taenia is a triploblastic animal

Q. Tube-within-a-tube body plan is present in

1. Hydra
2. tapeworm
3. Ascaris
4. sponges

Q.

The entire animal kingdom is classified into how many phyla?

1. 8

2. 9

3. 10

4. 11

Q. The body cavity is the cavity present between the body wall and the gut wall. In some animals, the body cavity is not lined by mesoderm. Such animals are called

1. pseudocoelomates
2. coelomates
3. acoelomates
4. none of the above

Q. Mesoderm is present as scattered pouches in between the ectoderm and endoderm in

1. Annelids
2. Molluscs
3. Platyhelminthes
4. Aschelminthes

Q. Diploblastic animals have

1. ectoderm, endoderm and mesoderm
2. ectoderm and mesoderm
3. ectoderm, endoderm and mesoglea in pouches
4. ectoderm, endoderm and mesoglea

Q.

How useful is the study of the nature of body cavity and coelom in the classification of animals?

Q.

What do you mean by coelomate animals? Give two examples.

Q.

Name the type of animal body cavity each of the following diagrams represents.

1. 1.-Acoelomate , 2.- Coelomate , 3.-PseudoCoelomate

2. 1.-PseudoCoelomate , 2.- Coelomate , 3.- Acoelomate

3. 1.- Coelomate , 2.- Acoelomate , 3.-PseudoCoelomate

4. 1.-Acoelomate , 2.-Pseudocoelomate , 3.-Coelomate

Q. The evolution of an internal body cavity was important in the animal body design for which of the following body functions?

1. Organ function
2. All of these
3. Movement
4. Circulation

Q. True coelom appeared first in the course of evolution in

1. chordates
2. roundworms
3. starfish
4. leech

Q.

Coelom is lined by

1. Ectoderm

2. Endoderm

3. All of these

4. Mesoderm

Q.

Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.

(a) Acoelomate

(b) Pseudocoelomate

(c) Coelomate

(d) Haemocoelomate

Q. Choose the correct option.

1. Annelids - Pseudocoelomates
2. Platyhelminthes - Acoelomates
3. Aschelminthes - Acoelomates
4. Platyhelminthes - Coelomates

Q. Ctenophores and jellyfish resemble each other in being:

1. Diploblastic and acoelomate
2. Triploblastic and acoelomate
3. Triploblastic and pseudocoelomate
4. Diploblastic and coelomate

Q. Deuterostomic body plan is a type of

1. protostomic body plan
2. cell aggregate body plan
3. tube-within-a-tube body plan
4. blind-sac body plan

Q.

How useful is the study of the nature of the body cavity and coelom in the classification of animals?

Q. Mesoderm helps in the differentiation between

1. both a and b
2. coelomates and acoelomates
3. diploblastic and triploblastic animals
4. acoelomates and pseudocoelomates

Q. Phylum consists of organisms which do not have a coelom.

1. Mollusca
2. Aschelminthes
3. Platyhelminthes
4. Echinodermata

Q. If the body has a single cavity with only one opening to the outside, then it is called

1. cell aggregate body plan
2. blind sac body plan
3. tube-within-a-tube body plan
4. protostomic body plan

Q. Mesoderm is present as scattered pouches in between the ectoderm and endoderm in

1. Annelids
2. Platyhelminthes
3. Molluscs
4. Aschelminthes

Q. The presence of cnidoblast is the characteristic feature of the phylum:

1. Porifera
2. Ctenophora
3. Annelida
4. Coelenterata

Q. Find the odd one out _______________.

1. Prawn and insects
2. Frog and snails
3. Snails and mussels
4. Prawn and mussels

Q. Hooks and suckers are present in which of the following acoelomate animals?

1. Ctenoplana
2. Pleurobrachia
3. Meandrina
4. Taenia

Q.

Which of the following is an example of a triploblastic organism?

1. Taenia solium

2. Fasciola hepatica

3. Both A and B

4. None of these.

Q.

Triploblastic animals possess an extra layer called _________.

Q. What do you mean by 'Connecting Links'? Give one example.

Q. Identify the incorrectly matched pair:

1. Jointed appendages - Arthropods
2. Pseudocoelomate - Platyhelminthes
3. Blind sac type - Cnidaria
4. Asymmetric - Sponge

Q. Mark the incorrect statement in the following.

1. Brunner’s glands are submucosal
2. Irregular folds of gastric mucosa are rugae
3. Glisson’s capsule is the connective tissue sheath of hepatic lobule
4. Mesothelium or serosa lies in close proximity of the circular layer of tunica muscularis