Which one of the following sets of animals belong to a single taxonomic group ?

Options

A. Cuttlefish, Jellyfish, Silverfish, Dogfish, Starfish
B. Bat, Pigeon, Butterfly
C. Monkey, Chimpanzee, Man
D. Silkworm, Tapeworm, Earthworm

Answer

To determine which set of animals belongs to a single taxonomic group, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Option 1: Cuttlefish, Jellyfish, Silverfish, Dogfish, Starfish**
- **Cuttlefish**: Belongs to the phylum Mollusca.
- **Jellyfish**: Belongs to the phylum Cnidaria (previously known as Coelenterata).
- **Silverfish**: Belongs to the phylum Arthropoda (it is an insect).
- **Dogfish**: Belongs to the class Chondrichthyes (cartilaginous fish).
- **Starfish**: Belongs to the phylum Echinodermata.
- **Conclusion**: All these animals belong to different phyla, so this option is incorrect.

2. **Option 2: Bat, Pigeon, Butterfly**
- **Bat**: Belongs to the class Mammalia.
- **Pigeon**: Belongs to the class Aves (birds).
- **Butterfly**: Belongs to the class Insecta (insects).
- **Conclusion**: These animals belong to different classes, so this option is also incorrect.

3. **Option 3: Monkey, Chimpanzee, Man**
- **Monkey**: Belongs to the order Primates within the class Mammalia.
- **Chimpanzee**: Also belongs to the order Primates within the class Mammalia.
- **Man (Human)**: Also belongs to the order Primates within the class Mammalia.
- **Conclusion**: All these animals belong to the same order (Primates) and the same class (Mammalia), so this option is correct.

4. **Option 4: Silkworm, Tapeworm, Earthworm**
- **Silkworm**: Belongs to the phylum Arthropoda (it is the larva of a silk moth).
- **Tapeworm**: Belongs to the phylum Platyhelminthes (flatworms).
- **Earthworm**: Belongs to the phylum Annelida.
- **Conclusion**: These animals belong to different phyla, so this option is incorrect.

### Final Answer:
The correct option is **Option 3: Monkey, Chimpanzee, Man** as they all belong to the same taxonomic group (order Primates).