[Campbell Biology P.1104] According to the text and Figure 47.15, what is the primary role of... | Practice Question

According to the text and Figure 47.15, what is the primary role of somites in vertebrate development?

  • A: They form the extraembryonic membranes.
  • B: They contribute to the segmented structure of the body, forming vertebrae and muscles.
  • C: They are responsible for forming peripheral nerves and skull bones.
  • D: They give rise to the brain and spinal cord.

Explanation

The text explicitly states: 'Somites play a significant role in organizing the segmented structure of the vertebrate body. Parts of the somites dissociate into mesenchyme cells. Some form the vertebrae; others form the muscles associated with the vertebral column and the ribs.'