Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?

1. Penguin is homoiothermic while the remaining three are
poikilothermic
2. Leech is a freshwater form while others are marine
3. Songilla has special collared cells called choanocytes,
not found in the remaining three
4. All are bilaterally symmetrical

Subtopic:  Phylum Porifera | Phylum Annelida | Study of Aves & Mammals |
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Which one of the following is not characteristic of phylum-Annelida?

1. Closed circulatory system

2. Segmentation

3. Pseudocoelom

4. Ventral nerve cord

Subtopic:  Phylum Annelida |
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Which one of the following is a matching pair of a body feature and the animal possessing it?

1. Post-anal-tail - Octopus

2. Ventral Central nervous system - Leech

3. Pharyngeal gills slits absent in embryo - Chamaeleon

4. Ventral heart - Scorpion

Subtopic:  Phylum Annelida |
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Which of the following pairs are correctly matched? 
 

Animals Morphological features
A. Crocodile 4-chambered heart
B. Sea urchin Parapodia
C. Obelia Metagenesis
D. Lemur Thecodont
 

1. A, C, and D

2, B, C, and D

3. Only A and D

4. Only A and B

Subtopic:  Phylum Coelenterata | Phylum Annelida | Phylum Echinodermata | Study of Reptilia | Study of Aves & Mammals |
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What is true about Nereis, Scorpion, Cockroach, and Silverfish?

1. They all have jointed paired appendages

2. They all possess a dorsal heart

3. None of them is aquatic

4. They all belong to the same phylum

Subtopic:  Phylum Annelida | Phylum Arthropoda |
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Metameric segmentation is characteristic of:

1. Platyhelminthes and Arthropoda

2. Echinodermata and Annelisa

3. Annelida and Arthropoda

4. Mollusca and Chordata

Subtopic:  Phylum Annelida | Phylum Arthropoda |
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