Terminology and Summary of Criteria for Classification

Q.

Which one of the following statements about all the four of Spongilla, Leech, Dolphin And Penguin is correct?

1. Penguin is homeothermic while the remaining three are poikilothermic

2. Leech is a fresh water form while all others are marine

3. All are bilaterally symmetrical

4. Spongilla has special collared cells called choanocytes, not found in the remaining three.

Q.

Choose the correct combination

1. Annelida and Porifera phyla

2. Oligochaeta and Arthropoda — phyla

3. Aves and Chordata — classes

4. Mollusca and Hydrozoa — classes

Q. Bilateral symmetry, metameric segmentation, coelom and open circulatory system characterize which of the following organisms?

1. Leech
2. Mussel
3. Crab
4. Sponges

Q. Which one of the following combinations is correct?

1. Aves and Chordata - Classes
2. Porifera and Annelida - Phyla
3. Mollusca and Hydrozoa - Classes
4. Oligochaeta and Arthropoda - Phyla