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What else can I help you with?
How can you tell the difference between the mouth and the anus of a earthworm?
The mouth of an earthworm is located on the anterior end, closer to the clitellum, and is typically smaller and more round in shape. The anus is located on the posterior end and is larger and more oval in shape. You can also observe the direction of the crop bands, which point towards the mouth and away from the anus.
Is the anus cleaner than the mouth?
Anus itself is,in a different view, the last ending of the digesting system that works as a valve to hold "dirt" from going out the inner part of the anus MUST be so dirty if you Wash it with a mild soap and water the anus will be clean.
What the conection of mouth and back hole with body?
The mouth and anus are both part of the digestive system, involved in the intake and release of food material, respectively. Food enters the body through the mouth, where it is broken down by teeth and enzymes, then travels through the digestive tract. Waste products are expelled through the anus after digestion is complete.
What is the function of the mouth and anus as the openings of a digestive system?
The mouth is where food enters the digestive system and is broken down by chewing and saliva. The anus is where waste leaves the body after nutrients have been absorbed.
Are sponges prokaryotic?
Sponges are neither protostomes nor deuterostomes. They have no mouth and no anus, one of the major distinguishing features of both proto./ deutero. is that they have both an anus and a mouth formation.
Among coelomates which of these develops by spiral cleavage and the mouth forms before the anus?
Annelids, such as earthworms, are coelomates that develop by spiral cleavage and have a mouth that forms before the anus during embryonic development.
What deuterostomes from first the mouth or the anus?
Deuterostomes are a group of animals characterized by their embryonic development, where the anus forms before the mouth. This is in contrast to protostomes, where the mouth develops first. Deuterostomes include phyla such as Chordata (which encompasses vertebrates) and Echinodermata (like starfish and sea urchins). The distinction in developmental patterns is a key feature in the classification of these organisms.
What is the structure that is found in an opening to the central cavity and develops into a mouth or an anus in the organism?
blastopore
What is deuterostome development?
Deuterostome development is a type of animal embryonic development in which the blastopore becomes the anus during gastrulation. This process is characterized by radial cleavage, indeterminate cleavage, and formation of an anus before a mouth. Deuterostomes include organisms such as vertebrates, echinoderms, and some invertebrate chordates.
The structure that is found in an opening to the central cavity and develops into a mouth or an anus in the organism is called?
blastopore
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? :)
The structure that is found in an opening to the central cavity and develops into a mouth or an anus in the organism is called the?
blastopore
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.
Are there more than one anus on a human?
No. All animals have one mouth and one anus.
Among coelomates in which of these does development occur by radial cleavage and the anus forms before the mouth?
Animals with deuterostome development exhibit radial cleavage, where the cells divide parallel or perpendicular to the polar axis of the embryo. In deuterostomes, such as echinoderms and chordates, the anus forms before the mouth during embryonic development.
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 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
