Flatworms belong to the phylum Platyhelminthes. The body of these worms are flattened from top to bottom, that’s why these worms are called flatworms. They are bilaterally symmetrical and triploblastic (having three germ layers) organisms but they lack a body cavity or coelom. The body systems such as digestive, muscular, nervous, excretory, and reproductive systems are developed. Examples are flukes, tapeworms.
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The body cavity of these animals is filled with fluids. Internal organs are covered by the fluid-filled space. The body cavity serves as the hydrostatic skeleton and has other functions such as digestion of food and waste removal.
The answer is C. Coelomates
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The correct answer is option B
The word" pseudo" means false and the organism that have false coelom and is called as pseudocoelomates.
The organisms like roundworms which a fluid filled body cavity. The tissue that is derived from the mesoderm partially lines in a fluid filled community.
Although the organs are held in the place loosely, they are not organized as like that of ceolomates.
The correct answer would be B. acoelomic
Acoelomate refers to the animal which lacks true body cavity or coelom.
In addition, they also lack highly developed organ systems such as the respiratory system, cardiovascular system, et cetera.
They usually have flat and thin bodies which help in gas exchange.
Examples may include tapeworm, flukes, planarians et cetera.
yes, they are examples of coelomates
three examples are as followsAcoelomates (animals with no coelom) Pseudocoelomates (animals with false coelom) Eucoelomates (animals with true coelom)
These lack the coelom and have digestive cavity and have bilateral symmetry so i conclude option B is correct
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