[Campbell Biology P.779] Based on the information presented about Tiktaalik in Figure 34.20,... | Practice Question

Based on the information presented about Tiktaalik in Figure 34.20, which of the following characteristics is classified exclusively as a "Fish Character"?

  • A: Neck
  • B: Scales
  • C: Fin skeleton
  • D: Flat skull

Explanation

The table in Figure 34.20 explicitly lists 'Scales', 'Fins', and 'Gills and lungs' under 'Fish Characters', while 'Neck', 'Ribs', 'Fin skeleton', 'Flat skull', and 'Eyes on top of skull' are listed under 'Tetrapod Characters'. Therefore, 'Scales' are exclusively a fish character for Tiktaalik according to this figure.