Arthropoda and Mollusca

Q.

Amphioxus belongs to the phylum ________.

Q. Choose the names of the organisms that fall under class 'Pisces'.

1. Shark
2. Pomfret
3. Octopus
4. Rohu

Q.

State whether true or false. Earthworms have bones.

1. False

2. True

Q.

Which of the following phylum does butterfly belongs to?

1. Annelida

2. Arthropoda

3. Platyhelminthes

4. None of the above

Q.

Reduced coelomic cavity is found in which phylum?

Q.

Mention any eight characteristics of phylum mollusca.

Q. Give four general characteristics of the phylum Mollusca. Write down two examples.

Q.

Explain the general characteristics of phylum Mollusca.

Q. Characteristic features of Phylum Mollusca are__________________
i. Soft body
ii. Jointed legs
iii. Presence of internal/external shell.
iv. Presence of mantle
v. Distinct body segmentation

1. i, ii, ii
2. ii, iv, v
3. iii, ii, v
4. i, iii, iv

Q.

Is the Operculum continuous with the shell itself?

Q. Assertion :Arthropods possess only true coelom. Reason: Haemocoel in arthropods is not lined by the mesodermal epithelium.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q. In which kingdom would you place an organism that is multicellular, eukaryotic, heterotrophic, lacks chlorophyll and has an ingestive mode of intake of food?

1. Animalia
2. Monera
3. Fungi
4. Protista

Q. An Arthropod having unjointed legs is

1. Limulus
2. Peripatus
3. Eupagurus
4. Millipede

Q.

Palaemon (prawn) has an open circulatory system and have jointed legs. To which group does it belong?

1. Arthropoda

2. Annelida

3. Coelenterata

4. Porifera

Q. Palaemon (prawn) has an open circulatory system and have jointed legs. To which group does it belong?

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

Q. Which of the following are invertebrates?

1. Reptilia
2. Pisces
3. Amphibia
4. Arthropoda

Q. Scorpions belong to which of the following phylum?

1. Arthropoda
2. Platyhelminthes
3. Nematoda
4. Porifera

Q. About 80% of all known living organisms belong to phylum _____________.

1. Mammals
2. Birds
3. Arthropoda
4. Mollusca