The archenteron of the developing sea urchin eventually develops into the ________.
A) blastocoel
B) heart and lungs
C) digestive tract
D) brain and spinal cord

Question

Quizplus · Accepted Answer

The archenteron is the embryonic gut that forms during gastrulation, which eventually becomes the digestive tract in the developed sea urchin. Choices A, B, and D are incorrect because the blastocoel is an early embryonic cavity, and the heart and lungs, as well as the brain and spinal cord, are not formed from the archenteron in sea urchins.

The Archenteron of the Developing Sea Urchin Eventually Develops into the ________