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Among coelomates which of these develops by spiral cleavage and the mouth forms before the anus?
Glory69
deuterostomes
Wiki User
∙ 10y ago
Wiki User
∙ 15y agoprotostomes
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How are snail eggs formed?
Spiral holoblastic cleavage is characteristic of several animal groups, including annelid worms, some flatworms, and most mollusc's. It differs from radial cleavage in numerous ways. First, the cleavage planes are not parallel or perpendicular to the animal-vegetal axis of the egg; rather, cleavage is at oblique angles, forming a "spiral" arrangement of daughter blastomeres. Second, the cells touch one another at more places than do those of radially cleaving embryos. In fact, they assume the most thermodynamically stable packing orientation, much like that of adjacent soap bubbles. Third, spirally cleaving embryos usually undergo fewer divisions before they begin gastrulation, making it possible to follow the fate of each cell of the blastula. When the fates of the individual blastomeres from annelid, flatworm, and mollusc embryos were compared, many of the same cells were seen in the same places, and their general fates were identical Blastulae produced by radial cleavage have no blastocoel and are called stereoblastulae._______________________________________________________________________P.S. I DID NOT WRITE THIS I GOT IT FROM WWW.GOOGLE.COM
Is the Milky Way a barred spiral?
yes, the milky way it is a barred spiral galaxy
What are spiral pipes?
they are pipes in form of a spiral shape :D
A galaxy with a bulge at its center and spiral arms?
A spiral galaxy or barred galaxy, the milky way is one.
This is a spiral galaxy with a straight bar shaped band of stars that extends outward to either side of the core and then merges into the spiral arm structure?
About two thirds of all spiral galaxies are barred. The Milky Way is classified as a barred spiral galaxy.
Are all deuterostomes coelomates?
Coelomates are either deutermostomes or protostomes. A protostomes have spiral cleavage lie mollusks, annelids, and arthropods. A deutermostomes has radial cleavage such as echinoderms, and chordates.
What is the difference between protosome and deuterosome?
Protostomes Deuterostomes 1.Mouth develops first then anus 1. Anus develops first then mouth 2.Blastopore develops into mouth 2.Blastopore develops into anus 3.Coelom absent and a schizocoel 3. Coelom develops as enterocoel by fusion develops by a split of mesoderm of gut pouches. 4.Cleavage is spiral and determinate 4. Cleavage is radial and indeterminate. 5.Larva is trochophore. 5. Larva is bipinnaria or tornaria 6.E.g. Molluscs, annelida & 6.E.g. Echinodermata & Chordata arthropodes
What is a prostodome?
Protostome: any member of the lower invertebrate phyla in which the mouth appears before the anus during development, cleavage is spiral and determinate, and the coelom forms as a splitting of the mesoderm.
What is a protostome?
This is straight from dictionary.com, so no credit for me: "any member of the lower invertebrate phyla in which the mouth appears before the anus during development, cleavage is spiral and determinate, and the coelom forms as a splitting of the mesoderm." That help? :)
Does a spiral suitcase belongs to a inclined plane?
Probably not, though I have never heard of a spiral suitcase before.
How are snail eggs formed?
Spiral holoblastic cleavage is characteristic of several animal groups, including annelid worms, some flatworms, and most mollusc's. It differs from radial cleavage in numerous ways. First, the cleavage planes are not parallel or perpendicular to the animal-vegetal axis of the egg; rather, cleavage is at oblique angles, forming a "spiral" arrangement of daughter blastomeres. Second, the cells touch one another at more places than do those of radially cleaving embryos. In fact, they assume the most thermodynamically stable packing orientation, much like that of adjacent soap bubbles. Third, spirally cleaving embryos usually undergo fewer divisions before they begin gastrulation, making it possible to follow the fate of each cell of the blastula. When the fates of the individual blastomeres from annelid, flatworm, and mollusc embryos were compared, many of the same cells were seen in the same places, and their general fates were identical Blastulae produced by radial cleavage have no blastocoel and are called stereoblastulae._______________________________________________________________________P.S. I DID NOT WRITE THIS I GOT IT FROM WWW.GOOGLE.COM
What is a severe storm that develops over tropicak oceans and whose strong winds of more than 120km h spiral?
A hurricane (Atlantic Ocean), or a typhoon (Pacific Ocean)
What shape does an spiral galaxy have?
First of all, it's a spiral galaxy, not an spiral galaxy. Second, a spiral galaxy would have a spiral shape, obviously.
What shape describes some bacterial cell?
Spiral
Where was the Spiral Jetty created before it disappeared due to erosion?
The Spiral Jetty was created by artist Robert Smithson in 1970 on the northeastern shore of the Great Salt Lake in Utah. Over time, due to natural processes such as erosion, the Spiral Jetty has periodically disappeared and reappeared.
What part of speech is the word spiral?
"Spiral" can be a noun as in, "The spring is in the shape of a spiral", or it can be a verb as in, "He would eventually spiral out of control."
Is spiral frog legal?
yes Spiral frog is legal. yes Spiral frog is legal. how do you delete spiral frog
