Which of These Animals is a Diploblast

Question

Which of these animals is a diploblast?
A)jellyfish
B)sea urchin
C)frog
D)chick
E)fruit fly

Accepted Answer

Diploblasts are animals that develop from two germ layers in embryonic development: the ectoderm and endoderm. Jellyfish are examples of diploblastic animals, while sea urchins are triploblastic, developing from three germ layers. Frogs, chicks, and fruit flies are also triploblastic animals.