JAMB - Biology (1987 - No. 6)
A good example of a diploblastic organism is
ameoba
hydra
earthworm
round worm
توضیح
Diploblastic organisms have two germ layers, the endoderm and ectoderm. These layers give rise to the tissues and organs of the animal. Examples of diploblastic animals include jellyfish, corals, sea anemones, hydra and comb jellies.