Which of the following have more characters in common?
(a) Phylum or family (b) Species or genus (c) Class or order

Explanation

To determine which of the following pairs have more characters in common, we need to analyze the taxonomic hierarchy and the levels of classification in biology.

**Step 1: Understand Taxonomic Hierarchy**
- The taxonomic hierarchy is structured in levels: Kingdom, Phylum, Class, Order, Family, Genus, and Species.
- Each level represents a rank in the classification of organisms, with Kingdom being the highest and Species being the lowest.

**Step 2: Analyze the Levels**
- As we move from the lower levels (Species and Genus) to the higher levels (Phylum and Class), the number of shared characteristics decreases.
...