Which of the following sets of animals shows a close taxonomic relationship ?

Options

A. Jellyfish , cuttlefish , catfish
B. Honeybee,crayfish,spinder
C. Alligator,nautilus,turtle
D. Kangaroo, octopus, salamander

Answer

To determine which set of animals shows a close taxonomic relationship, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Animal Sets**: We have several options to analyze. Each option contains a set of three animals.

2. **Analyze Option A**:
- **Jellyfish (Aurelia)**: This belongs to the phylum **Cnidaria**.
- **Cuttlefish**: This belongs to the phylum **Mollusca**.
- **Catfish**: This belongs to the phylum **Chordata** (specifically, it is a type of fish).
- **Conclusion for Option A**: Since all three animals belong to different phyla, this option does not show a close taxonomic relationship.

3. **Analyze Option B**:
- **Honey Bee**: This belongs to the phylum **Arthropoda**.
- **Crayfish**: This also belongs to the phylum **Arthropoda**.
- **Spider**: This also belongs to the phylum **Arthropoda**.
- **Conclusion for Option B**: All three animals belong to the same phylum (Arthropoda), indicating a close taxonomic relationship. This option is likely correct.

4. **Analyze Option C**:
- **Alligator**: This belongs to the phylum **Chordata** (class Reptilia).
- **Nautilus**: This belongs to the phylum **Mollusca**.
- **Turtle**: This also belongs to the phylum **Chordata** (class Reptilia).
- **Conclusion for Option C**: Since Nautilus is in a different phylum than the other two, this option does not show a close taxonomic relationship.

5. **Analyze Option D**:
- **Kangaroo**: This belongs to the phylum **Chordata** (class Mammalia).
- **Octopus**: This belongs to the phylum **Mollusca**.
- **Salamander**: This belongs to the phylum **Chordata** (class Amphibia).
- **Conclusion for Option D**: Since Kangaroo and Salamander are both in Chordata but Octopus is in Mollusca, this option does not show a close taxonomic relationship.

6. **Final Conclusion**: The only option where all animals belong to the same phylum is Option B (Honey Bee, Crayfish, and Spider), which all belong to **Arthropoda**.

### Answer:
The correct answer is **Option B**: Honey Bee, Crayfish, and Spider, as they all belong to the same phylum, Arthropoda.