Question

9. Write two characteristic features of diploblastic
animals.​

Answer 1

Answer:

These two germ layers are composed of endoderm and ectoderm but not mesoderm. Endoderm gives rise to true tissues combining with the gut. On the other hand, ectoderm gives rises to epidermis, nervous tissue and nephridia. Since diploblastic animals are lacking a mesoderm, they cannot generate body cavities.

Answer 2

Answer:

Diploblastic animals have only two embryonic germ layers (ectoderm and endoderm). Cnidarians, such as jellyfish, coral and sea anemones, are examples. ... Animals having all three germ layers are called triploblastic. Many triploblastic animals develop a body cavity called a coelom that is absent in diploblastic animals.

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