As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics

Options

A. will decrease
B. will increase
C. remain same
D. may increase or decrease

Answer

To solve the question, "As we go from species to kingdom in a taxonomic hierarchy, the number of common characteristics," we need to analyze the taxonomic hierarchy and the characteristics shared among organisms at different levels.

### Step-by-Step Solution:

1. **Understanding Taxonomic Hierarchy**:
- The taxonomic hierarchy is a system used to classify living organisms. It includes several levels: species, genus, family, order, class, phylum, and kingdom.
- Each level groups organisms based on shared characteristics.

2. **Characteristics at Different Levels**:
- At the species level, organisms share a high number of specific characteristics. For example, all members of a species have similar reproductive, morphological, and genetic traits.
- As we move up the hierarchy from species to genus, family, order, class, phylum, and finally to kingdom, the organisms grouped together become more diverse.

3. **Common Characteristics**:
- In lower taxonomic categories (like species and genus), organisms share many specific traits.
- In higher taxonomic categories (like kingdom), organisms are grouped based on broader characteristics, which means they share fewer specific traits.

4. **Conclusion**:
- Therefore, as we move from species to kingdom, the number of common characteristics decreases. This is because the higher the taxonomic level, the more diverse the organisms become, leading to fewer shared characteristics.

5. **Correct Answer**:
- The correct option is **A**: The number of common characteristics will decrease.