Sage-Tips

What do you mean by diploblastic animals Class 9?

Animals in which the cells are arranged in two embryonic layers—external ectoderm and internal endoderm—are called diploblastic animals.

What do you mean by diploblastic and triploblastic?

Diploblastic: An animal possessing 2 major tissue layers. These include the outer layer (the ectoderm) and the inner layer (the endoderm). Triploblastic: An animal possessing 3 major tissue layers. It has a middle layer (the mesoderm), between the endoderm and the ectoderm.

What is an example of a diploblastic organism?

Jellyfish, comb jellies, corals and sea anemones are the examples of diploblastic animals. Triploblastic organisms form all three primary germ layers – endoderm, ectoderm and mesoderm – during the gastrulation of the blastula. Mesoderm development is the characteristic feature in triploblastic animals.

What do you mean by triploblastic organism?

Organisms of Kingdom Animalia having three primary embryonic cell layers i.e., the ectoderm, mesoderm and endoderm from which different tissues and organs of the animal’s body differentiate out are known as triploblastic.

Which is the diploblastic animal phylum?

The organisms that have ctenophora and Cnidaria are the diploblastic animals. They are called diploblastic because of the presence of two germ layers; endoderm and ectoderm.

What do you mean by diploblastic and Triploblastic animals give examples?

Diploblastic animals have two germinal layers (ectoderm and endoderm) during embryonic development, e.g., poriferans. Triploblastic animals have three germinal layers (ectoderm, mesoderm and endoderm) during embryonic development, e.g., platyhelminthes.

What do you mean by diploblastic and triploblastic animals give example?

What do you mean by diploblastic and triploblastic Class 9?

Diploblastic organisms means having a body derived from only two embryonic cell layers i.e. ectoderm and endoderm (but no mesoderm). Example – Sponges and coelenterates. Triploblastic organisms are organisms whose body is derived from three embryonic cell layers (ectoderm, mesoderm, and endoderm).

Is amoeba a diploblastic organism?

Amoeba is a one-celled protozoan. It does not possess any embryonic cell layer, hence is neither diploblastic nor triploblastic.

What do you mean by diploblastic and triploblastic animals give examples?

What do you mean by triploblastic organisms give two examples?

Triploblastic animals are the ones with three germ layers (a mesoderm as well as ectoderm and endoderm). The mesoderm allows them to develop true organs. Example: Flat worms and humans. Suggest corrections.

Which is the first diploblastic animal?

Answer: Cnidaria and Ctenophora are considered as diploblastic.