[Campbell Biology P.1104] Based on the text, what is a key similarity between neurulation in ... | Practice Question

Based on the text, what is a key similarity between neurulation in vertebrates e.g., chicks and insects?

  • A: In both, the nervous system forms from the dorsal side of the embryo.
  • B: The ectoderm rolls into a tube inside the embryo in both.
  • C: Both processes rely solely on changes in cell location, not shape.
  • D: The molecular signaling pathways are entirely distinct, indicating convergent evolution.

Explanation

The text highlights that despite differences in pattern e.g., ventral vs. dorsal nervous system formation , in insects, 'ectoderm along the anterior-posterior axis then rolls into a tube inside the embryo, just as in vertebrate neurulation', indicating this as a key similarity.