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spoges are diploblastic because they have radial symmetry
one's having rad. sym. are diplo.
and one's having bilateral are triploblastic
This is a true statement, but what we find in animal Biology is that there are exceptions to most of the rules. Sponges, or the phylum Porifera do not have true tissues. They are metazoa at their cellular grade of construction, not eumetazoa. If you look at phylogenic tree, you will see that sponges are not directly related to cnidarians, which are radial symmetric and diploblastic. Some sponges are radial symmetric, however the class of sponges, demospongiae, have many species of sponges which have leuconoid body-plans, which are asymmetrical. These are mostly freshwater sponges. So therefore, sponges are not triploblastic or diploblastic, they are neither since they possess no true tissues.
What else can I help you with?
What are Difference beteewn diploblastic and triploblastic organization?
diploblastic have two body wall ectoderm and endoderm
What is the advantage of a triploblastic body plan over a diploblastic body plan?
angazi
Difference between triploblastic and diploblastic organisation?
Triploblastic organisms have three germ layers (ectoderm, mesoderm, endoderm), allowing for the development of more complex structures like organs and tissues, while diploblastic organisms have two germ layers (ectoderm, endoderm). Triploblastic organisms are usually more advanced and have greater complexity in their body structure compared to diploblastic organisms.
Are sponges diploblastic?
Yes. they have two germ layers - or a two - layerd body wall. The epidermis and gastrodermis. Actually sponges lack true tissues and are therefore not diploblastic.
Are cnidaria triploblastic?
Cnidaria are Diploblastic, having two main body layers. They also have a Mesoderm, but this is simply a collection of nerves, creating a nerve net.
Difference between Diploblastic and triploblastic embryo development?
the body of diploblastic animals consists of two layers of cells, ectoderm and endoderm. there is a jelly like mesenchyme or mesoglea, between the two layers, which in most cases is non cellular. the body of triploblastic animals is made of three layers ectoderm, endoderm and mesoderm.
What are Poriferans?
"Poriferans" is the scientific term for sponges, members of the animal phylum Porifera, which means "pore-bearer" in Greek. Sponges are the simplest animals known. Unlike all other animal phyla, which have two or three-layered body plans (diploblastic or triploblastic), sponges have only a single body layer (monoblastic), and no true tissues. They have no appendages and no ability to make any movements, lacking muscle tissues. Sponges are exclusively aquatic.
What does triploblastic means?
Triploblastic refers to animals with three germ layers during embryonic development: ectoderm, mesoderm, and endoderm. These layers give rise to specialized tissues and organs in the body. Triploblastic animals are more complex than diploblastic animals, which have only two germ layers.
Are fish triploblastic?
Yes, a protostome is, and so is a deuterostome. Neither are diploblastic. This is mainly because of the developement of the coelem or body cavity. Just remember, both protosome and deuterostome require a three germ layer (that is a triploblastic cell) - ALWAYS
Are platyhelminthes diploblastic?
Hydra are diploblastic - something from the hydra family possesses only an ectoderm and endoderm, around its body cavity (stomach). If it was triploblastic, there would be organs developing from the central layer.
Difference between triploblastic and diploblastic animals?
DIPLOBLASTICHave 2 body layers (ectoderm and endoderm)Their body cells are in contact with the environment and use diffusion to get their requirements and get rid of wasteHave a tissue layer of organisation with specialized tissues to perform specific functions (they have no organs or organ systems)TRIPLOBLASTICHave 3 body layers (ectoderm, mesoderm and endoderm)The mesoderm creates a space for organs to develop.The greater number of layers and greater complexity of the organisms means that it needs to develop organs and organ systems to provide what it require and get rid of waste.
What do you mean by diploplastic?
Diploblastic is generally referred to as "having a body derived from only two embryonic cell layers (ectoderm and endoderm, but no mesoderm), as in sponges and coelenterates".
