What best describes the role of genes in evolutionary classification? O Gene comparisons are useful for excluding species from clades, but not for including them.
O Differences in the transcription of genes are used to define clades.
O Certain genes are derived characters that can be used to define clades.
O The number of genes per organism helps scientists classify species in clades.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.