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Q What is the system that permits fixation and movement to echinoderms?
The system that permits fixation and movement to substrates in echinoderms is called the ambulacral system. In these animals water enters through a structure called madreporite passes through channels and reaches the ambulacral feet in the undersurface of the body. In the ambulacral region in contact with the substrate there are tube feet emptied and filled by water thus acting as suckers.
Which of the following statements is most acceptable from an evolutionary point of view? (a) Apes and humans have evolved from a common ancestor. (b) Humans have evol
General Characteristics of Protozoans The protozoans, are eukaryotes that form a group of about 80,000 single-celled organisms under the kingdom Protista. The unicellular leve
Oxaloacetate has two main roles. It is an intermediate which is consumed in gluconeogenesis and it is also a key intermediate in the citric acid cycle where it fuses with acetyl Co
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Define the Integrity of gut or colon? Dietary fibre especially fermentable fibres play an important role in maintaining the integrity of gut. SCFAs generated during fermentatio
what is the name of the valve that separates the chamber?Why is that valve necessary?
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