Biology · The Living World

As one moves from Species up to Kingdom in the taxonomic hierarchy, which of the following trends correctly describes the changes in the number of common characters and the complexity of determining relationships among taxa?

1. A
   Number of common characters increases, and difficulty of determining relationship increases.
2. B
   Number of common characters increases, and difficulty of determining relationship decreases.
3. C
   Number of common characters decreases, and difficulty of determining relationship decreases.
4. D
   Number of common characters decreases, and difficulty of determining relationship increases.