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Digestive Tract
Extracellular digestion takes place in a tubular cavity that extends throughout the length of the organism. All animals after flatworms have-a tubular alimentary organisation open at both ends. The development of extracellular digestion freed many animals from feeding continuously on small particles. They could now quickly ingest a few large chunks of food. The overall tubular organisation of the digestive tract also allows the food to travel in one direction passing through regions of digestive specialisation.
Figure: Generalised digestive tract. One way passage of food allows sequential stages in digestion. Dashed lines represent crop in some animals
Temperature is one of the important factors affecting the process of growth in bacteria, as it has a bearing on chemical reactions. The temperature at which the maximum growth occu
Q. Can you explain Irradiation? Irradiation: It is the process of exposing food to carefully controlled amount of ionising energy to destroy and control microorga
what is the problem that the theory of evolution and its rival theories try to solve?
State the changes in society which could contribute to a falling death rate. The changes in society which could contribute to a falling death rate are: (i) improvements in
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Explain Rickets Rickets:- A condition in children due to vitamin D deficiency.
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AYou are a sergeant in a community relations unit in a mid-sized metropolitan police department. Your division commander sent you off to a 1-week ethics school run by the Justice D
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