Question

Triploblastic are animals with
(A)Three organs
(B)Three-layer of cells
(C)Three-layer of skin
(D)Three-layer of tissues

Answer 1

Hint: Blastic is the term that is always related to the cells of the body. The correct meaning of the term blastic is having a given type or number of buds, cells, or cell layers.

Complete answer:
 Triploblastic are animals with three layers of the cell. Triploblasty is defined as a condition of the gastrula during which there are three primary germ layers: the ectoderm, mesoderm, and endoderm. A fourth "layer" consists of the germ cells that are put aside within the embryo at the blastula stage, which are incorporated into the gonads during organogenesis. The germ layers are formed during the gastrulation of the blastula. Additionally, the term may check with any ovum during which the blastoderm splits into three layers. All the animals, from flatworms to humans, are triploblastic.

Additional Information: A germ layer is a primary layer of cells that are formed during embryonic development. The three germ layers in the vertebrates are the ectoderm, the mesoderm, and the endoderm. However, two or three primary germ layers are produced by all eumetazoans Some animals, like cnidarians, produce two germ layers which are the ectoderm and endoderm making them diploblastic. Other animals like chordates produce a 3rd layer (the mesoderm) between these two layers, making them triploblastic. Germ layers eventually produce to all or any of an animal’s tissues and organs through the method of organogenesis.
So, the correct answer is ‘Three-layer of cells’.

Note: It is seen that sometimes, the additional fourth layer is also present, known as a neural crest and because of its great importance, the neural crest is sometimes considered a fourth germ layer. It is, however, derived from the ectoderm.