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What is the significance of coelom in the classification of animals?
Body cavity or coelom is generally the third most important criteria, after levels of organisation and body symmetry, in the classification of animals. Animals can be classified into four types on the basis of the type of body cavity they possess:Acoelomate (coelom absent): includes animals like sponges, coelenterates and flatworms,Pseudocoelomate (false coelom present): includes roundworms, andEucoelomate (true coelom present): includes all chordates, besides rest of the invertibrates.
Which phylum has a pseudocoelom?
The phylum Nematoda has a pseudocoelom. This type of body cavity is not completely lined by mesoderm tissue, giving it certain characteristics of a true coelom but lacking some key features.
What is the scientific name for sea stars?
asterios forbesii Well yes but it has more than that
What data type stores Web addresses in access?
The data type that stores web addresses (URLs) in Access is typically a "Hyperlink" data type. This data type allows users to store and access web addresses as clickable links within the database.
What are the objectives of selecting a data type for a field?
The objectives of selecting a data type for a field include ensuring data integrity by restricting the type of values that can be stored, optimizing storage space by choosing the most appropriate data type for the data being stored, and facilitating efficient data retrieval and manipulation by selecting a data type that best fits the operations that will be performed on the data.
What is the difference from a starfish and a brittle star?
a brittle star is a type of starfish.
What type of symmetry does a brittle star have?
They are very brittle and they can get up to a very bright temperature
What type of coelom does a hydra have?
Hydras are acoelomates.
Does a grasshopper have a coelom?
Yes, grasshoppers do have a coelom. This is the type of body cavity they have. There are over 10,000 known species of grasshoppers.
What type of coelom does an enterocoelous animal have?
A coelomate animal is the one which has a body cavity in which well developed organs can be accomodated.
What type of echinoderm has flexible arms that are easily broken to escape predators?
The brittle star has very flexible arms that can brake of in situations involving a predator. The broken arms will continue to wiggle and move to distract said preditor, allowing the brittle star itself to escape.
Do sandworm have coelom?
Yes, sandworms, which are a type of annelid, possess a coelom. The coelom is a fluid-filled body cavity that is completely lined by mesodermal tissue, providing space for the development and organization of internal organs. In sandworms, the coelom plays a crucial role in locomotion and the circulation of fluids within their bodies.
What type of coelom does ascaris have?
Ascaris has a pseudocoelom, which is a body cavity that is partially lined by mesoderm but lacks a full peritoneal lining like a true coelom.
What type of body do insects have true coelom or pseudocoelom?
Insects have a body plan characterized by a hemocoel, which is a type of body cavity that is not a true coelom. Instead of a coelom, insects possess a pseudocoelom-like space filled with hemolymph, which is a fluid that helps in nutrient transportation and waste removal. This hemocoel is part of the open circulatory system typical of arthropods. Hence, insects do not have a true coelom or a pseudocoelom in the traditional sense.
The body cavity is a true coelom why?
A true coelom is a body cavity completely lined with mesoderm tissue. It provides space for organ development, protection, and flexibility. This type of coelom allows for efficient organ function and movement within the body.
What is schizocoelous coelom?
Schizocoelous coelom refers to a type of body cavity formation observed in certain animal phyla, particularly in protostomes like annelids and mollusks. In this process, the coelom is formed by the splitting of mesodermal tissue, creating a cavity that is lined by mesoderm. This contrasts with enterocoelous coelom formation, where the coelom develops from pouches that bud off the embryonic gut. The schizocoelous arrangement allows for greater flexibility and complexity in body structure and organ development.
Is splanchnocoel a true coelom?
The splanchnocoel is not a true coelom; rather, it is a type of body cavity found in certain organisms, particularly in some invertebrates like arthropods. It is derived from the embryonic mesoderm but is not entirely lined with mesodermal tissue, which is a defining characteristic of a true coelom. In contrast, a true coelom is a fully enclosed body cavity that is completely lined by mesoderm. Therefore, while the splanchnocoel serves as a body cavity, it does not meet the criteria to be classified as a true coelom.
