Question Detail
Question
Most animals are triploblastic in their embryonic stages except for which of the following?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Triploblastic animals possess three germ layers (ectoderm, mesoderm, and endoderm) during embryonic development. Porifera (sponges) are considered diploblastic or even parazoan, meaning they lack true tissues or only have two germ layers. Echinoderms, Mammals, and Aves are all triploblastic.
Hint
Recall the classification of animals based on germ layers.