What is schizocoely and Enterocoely?
Schizocoelous refers to the condition of embryonic development in which the body cavity is formed by the splitting of the mesoderm while enterocoelous refers to the condition in which the coelom forms from pouches “pinched” off of the digestive tract.
What is the meaning of Enterocoelous?
Enterocoely (adjective forms: enterocoelic and enterocoelous) describes both the process by which some animal embryos develop and the origin of the cells involved. As the incipient coelomic epithelium originates from archenteral diverticula, the endoderm therefore gives rise to the mesodermal cells.
What is the difference between Schizocoelom and Enterocoelom?
The key difference between enterocoelom and schizocoelom is that enterocoelom arises in the embryonic stage as an out pocketing of the developing gut (enteron) while schizocoelom arises through the splitting of the mesodermal mass into a pocket-like cavity during embryonic development.
What happens in mesoderm formation in schizocoely development?
The coelom of most protostomes is formed through a process called schizocoely. The mesoderm in these organisms is usually the product of specific blastomeres, which migrate into the interior of the embryo and form two clumps of mesodermal tissue.
Which of the following phyla are Schizocoely?
Schizocoelous development often occurs in protostomes, as in phyla Mollusca, Annelida, and Arthropoda. However, some deuterostomes like enteropneusts can exhibit schizocoely as well.
What is Archenteron in biology?
The primary gut that forms during gastrulation in the developing zygote is known as the archenteron or the digestive tube. It develops into the endoderm and mesoderm of an animal.
How do Acoelomates develop?
When animals such as pigs, cattle, or fish, ingest tapeworm eggs, the eggs develop into larvae in the animal’s digestive tract. Some tapeworm larvae can penetrate the digestive wall to enter a blood vessel and be carried by blood circulation to muscle tissue.
How are Acoelomates characterized?
An acoelomate is a creature that doesn’t have body depression. Dissimilar to coelomates (eucoelomates), creatures with a genuine body cavity, acoelomates come up short on a liquid filled pit between the body divider and stomach related lot.
Is cockroach a Schizocoelom?
Thus, Schizocoel is the coelom in cockroaches which is situated in the body cavity and helps in the food digestion properly.
Are all Deuterostomes Enterocoelomates?
By all above mentioned details, we understand that Echinoderms only are both deuterostomate as well as ecterocoelomate. Hence, the correct answer is option (D). Note: Deuterostomes at times can also be identified as enterocoelomates. This is the reason that the coelom in the deuterostome develops through enterocoely.
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