10. The butterfly's wing looks different in the different photos because A. the photos were taken at different scales.
B. the wing was bent to reveal its inner structure in the last photo,
C. one photo shows the edge of the wing and one shows the middle of the wing.

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f