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Why, even though they have an open circulatory system, can flying insects like flies beat their wings with great speed?
In insects the circulatory system is open but this system does not participate in the gas exchange process and in oxygen supply to the tissues. Gases go in and out by the independent tracheal system that permits direct contact of cells with the ambient air. Thus an insect can supply the great oxygen demand of its fast-beating wing muscles even having open circulatory system.
P HYSICA L PROPERTIES OF PROTOPLASM - 1 . Phase reversal - Due to difference in temperature outer part is gel and inner part of sol 2. Tyndall effect - Be
Active Transport We have mentioned above that Transmembrane potential develops due to active transport of ions (H + ) outside the cell. Since this transport takes place again&
Q. Fats requirement in pectic ulcer? Fats: These delay the gastric emptying. The products of fat digestion in the small intestine stimulate entrogastrone, which inhibits gastri
Following a meal, fructose 2,6 bisphosphate levels will be elevated in the liver. Under these metabolic conditions, all of the following enzymes will be active except: -PFK1
Protein Protein: The requirement of protein is increased in typhoid, as there is a massive tissue loss. Thus, the protein intake should be increased above the normal of lg/
Q. What are flight adaptations present by birds? Wings associated to a well-developed pectoral musculature, less accumulation, pneumatic bones of feces in the bowels due to the
Length of the Implant Used The length of the implant to be used is dictated by the available bone height. The success rate is proportional to the implant length and the quality
Asymmetric carbon atom : a carbon atom attached with four different groups or atoms.
what is nutrition
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