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Where does the first opening which developes in the deuterostomes develope into?
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The distinction between protostomers and deuterostomers is based on differences in their what?
Invertebrates develop as either protostomes or deuterostomes. During development, a protostome's first opening is its mouth. Deuterostomes, on the other hand, have their anus as their first opening during development.
Does the blastopore forms a mouth?
In protostome ("first mouth") the blastopore, or the first opening formed becomes the mouth. In deuterostomes ("second mouth"), the blastopore forms the anus and the mouth develops from a second opening.
Compare and contrast protostomes and deuterostomes?
The difference between protostomes and deuterostomes can first be analyzed within embryonic development. During development, an opening on the surface of the embryo will eventually connect to the the developing gut, which is called the archenteron, to the outside environment. The opening on the surface of the embryo is called the blastopore. Later on, a second opening at the opposite end of the embryo turns the pouch-like gut into a digestive tube. In protosomes, the blastopore develops into the mouth and the second opening forms the anus. In deuterostomes, the blastopore develops into the anus and the second opening forms the mouth.Also, examples of protostomes are mollusks and examples of deuterostomes would be us!!this is a good answer, but here is more info...for protostomes, During early cell divisions the cells almost immediately become determined, which means it differentiates what it becomes in the organ while Deuterostomes are not cell specific. so protostomes have determinate cleavage while deuterostomes have indeterminate cleavage.deuterostomes also usually are Cnidaria and Echinodermata and they show radial symmetry.In most protostome animals with a true coelom, the body cavity originates as a split within a bud of mesodermal tissue at the time of gastrulation. This method of coelom formation is termed schizocoelous , and occurs in animals like segmented worms and mollusks. In most deuterostome animals the coelom originates from an outpocketing of the archenterons during gastrulation. This method of coelom formation is called enterocoelous.
Which type of organism developed first A. Deuterostomes B. Vertebrates C. Chordates D. Sponges?
D.Sponges
Which type of organism developed first vertebrates or chordates or sponges or Deuterostomes?
sponges -apex
How are echinoderms and chordates similar?
both have a nerve cord
When was the first rail rute develope in India?
in 1857.
Which era did the first fish develope?
Fish first developed in the Paleozoic Era
What does the blastopore become?
At the stage of development when the gut forms there is only a single opening into the digestive track, this opening may become either the mouth or anus. In the echinoderms, chordates, and hemichordates the blastopore becomes the anus and a new opening forms the mouth, these are called deuterostomes
Who first develope the correct ideas about the acceleration of gravity?
Galileo
What was the first major civilization to develope Greece?
the Minoan Civilization
Who develope the first known system for classifying living things?
Aristotle
