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Among coelomates in which of these does development occur by radial cleavage and the anus forms before the mouth?
Wiki User
∙ 8y ago
Protostomes
Wiki User
∙ 8y ago
Anonymous
Deuterostomes
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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 are the five key evolutionary changes in the animal body plan?
The evolution of symmetry, tissues, a body cavity, patterns of embryonic development, and segmentation (repeated body units). Symmetry is found as radial symmetry (halves of the body mirror each other) and bilateral symmetry (symmetric in every direction). Cells differentiate into tissues which allows for specialized structures and functions. The evolution of body cavities allowed for the evolution of organ systems. There are 2 patterns of embryonic development in bilateraly symmetrical animals: protostomes and deuterostomes. Other embryonic development classifications are cleavage patterns (spiral and radial), determinate or indeterminate development, and coelom formation. With segmented animals, each segment has a set of organ systems. This is advantageous because if one segment is damaged, the animal will not die. Segmentation also allows animals to move more effectively since the segments can move fairly independently.
What is radial symmetry?
When something has symmetry in a radial (circular) pattern.
What is the symmetry of a sea wasp?
the sea wasp also called the box jelly fish- symmetry is radial
Which creatures has radial symmetry?
The most prominent animal phyla with radial symmetry are the Echinodermata (starfish and sea urchins) and the Cnidaria (jellyfish and corals).
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 radial cleavage?
Radial Cleavage is a type of Holoblastic Cleavage. You can get Isolecithal, Radial Cleavage which gives you equal yolk distribution between blastomeres. And you can get Mesolecithal, Radial Cleavage which gives moderate yolk distribution but it tends to have some asymmetrical distribution of the yolk which causes some blastomeres to be slightly smaller. (At least this is what it seems to be to me...) Previous Answer: i think it means giant boobs. don't really know sorry
Which phyla are classified in the deuterostomia?
The phyla classified in Deuterostomia are Echinodermata and Chordata. These phyla exhibit a unique pattern of embryonic development where the blastopore becomes the anus, and radial cleavage occurs during cell division.
Which body plan feature evolved first radial symmetry or deuterostome development?
Radial symmetry
Radial Arm Saw?
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What are three types of sheet metal layouts?
1. Parallel line development 2. Radial line development 3. Triangulation
What is the 3 basic types of surface development?
There are three major kinds of surface development 1. parallel line development 2. radial line development 3. triangulation development By: Ossan abad
What is the next vessel after the axillary artery and before the radial and ulnar artery?
The vessel after the axillary artery, before it branches into the radial artery and ulnar artery is called the brachial artery.
Which pulse occurs first radial or carotid?
The carotid will occur a fraction of a second before the radial, simply because of the distance travelled.
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 are the five key evolutionary changes in the animal body plan?
The evolution of symmetry, tissues, a body cavity, patterns of embryonic development, and segmentation (repeated body units). Symmetry is found as radial symmetry (halves of the body mirror each other) and bilateral symmetry (symmetric in every direction). Cells differentiate into tissues which allows for specialized structures and functions. The evolution of body cavities allowed for the evolution of organ systems. There are 2 patterns of embryonic development in bilateraly symmetrical animals: protostomes and deuterostomes. Other embryonic development classifications are cleavage patterns (spiral and radial), determinate or indeterminate development, and coelom formation. With segmented animals, each segment has a set of organ systems. This is advantageous because if one segment is damaged, the animal will not die. Segmentation also allows animals to move more effectively since the segments can move fairly independently.
Which artery runs in the radial groove with radial nerve?
radial artery
