ANIMAL REPRODUCTION AND DEVELOPMENT
EMBRYONIC DEVELOPMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Acoelomate
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Pseudocoelomate
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Coelomate
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Detailed explanation-1: -Among the acoelomate phyla, the members of Platyhelminthes (flatworms ) have no body cavity, and the space between the gut and the body wall, when present, is filled with a spongy organ tissue of mesodermal cells through which tissue fluids may percolate.
Detailed explanation-2: -Acoelomate animals, like flatworms, have no body cavity at all. Semi-solid mesodermal tissues between the gut and body wall hold their organs in place.
Detailed explanation-3: -Also, the absence of body cavities does not signify the absence of fluid currents in the body. Platyhelminthes and sponges are classic examples of acoelomates.
Detailed explanation-4: -Solution : Platyhelminthes is acoelomate while echinodermata and chordata are coelomates.