Largest group of arthropoda

Options

A. Insects
B. Crustacea
C. Arachnida
D. Myriapoda

Answer

**Step-by-Step Solution:**

1. **Understanding Arthropoda**: Arthropoda is a phylum that includes a diverse group of invertebrates characterized by their exoskeleton, segmented bodies, and jointed appendages.

2. **Identifying the Groups within Arthropoda**: The main groups within the phylum Arthropoda include:
- Insects
- Crustacea
- Arachnida
- Myriapoda

3. **Analyzing the Largest Group**:
- **Insects**: This group is the most diverse, with around 30 different orders and comprising about 80% of the total species in the world.
- **Crustacea**: This group has approximately 52,000 species, which is significantly fewer than insects.
- **Arachnida**: This group has only 15 orders and is also smaller in comparison to insects.
- **Myriapoda**: This group includes centipedes and millipedes, with around 12,000 species.

4. **Conclusion**: Based on the analysis, insects are the largest group within the phylum Arthropoda due to their vast diversity and abundance in various environments.

**Final Answer**: The largest group of Arthropoda is **Insects**.

---