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What is the system that permits movement and fixation to echinoderms?
The system that allows movement and fixation to substrates in echinoderms is known as the ambulacral system. In these animals water enters by a structure called madreporite, passes by 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 filled and emptied by water therefore acting as suckers
Measurement of solar energy input A variety of instruments have been designed to measure the energy of solar radiations of all wavelengths as well as of a particular range of w
What is the importance of mitosis for the embryonic development? Every embryo grows from a single cell that suffers mitosis and operates other cells that also divide themselves
Q. How does vitamin C act in the body? What is the harm caused by insufficiency of vitamin C? Why was this deficiency also known as "sailors' disease"? Vitamin C, or ascorbic a
Explain the Maltose and Cellobiose? Maltose consists of two a-D-glucose molecules with the alpha bond at carbon 1 of one molecule attached to the oxygen at carbon 4 of the se
what is a lymphatic vessel
Explain about the Colour Sense Colour Sense is the faculty whereby we are enabled to distinguish colours as excited by light of different wave length. The ability to a
The fact that some pure solutions of hydrocarbons do not readily evaporate at room temperature is a result of- Select one: a. London dispersion forces. b. The hydrophobic
Board spectrum antibiotics are effective against several diff. types of harmful bacteria ex: tetracycline
The water on earth surface constitutes hydrosphere. About 75% of earth surface is covered with water and 97% of that water is present in oceans, which is very salty. We are only
Q. Give some Chlorine-releasing compound? Of all the chlorine - releasing compounds, hypochlorites have been the choice disinfectants used in food industry. The hypoc
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