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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.
1. Name four experimental techniques to determine protein-protein interactions other than X-ray & NMR techniques. 2. How common are Coiled-coil motifs? Where are they found? Giv
What are the problems that vertebrates required to solve to adapt to the terrestrial environment as they came from the aquatic habitat? How evolution does solve those problems?
Multiplication Phas - Stages of spermatogenesis The initial cells in the germ line arc known as primordial germ cells (PCC). The PGC, which arise at some distance from the pro
Describe the difference between dna and protein. (structural unit, linkage bond, primary and spatial structure)
MEIOSIS Every organism is mortal, It becomes old and wornout with advancing age (= ageing ) and ultimately dies ,Before death however ,it reproduces its own kind, so
i have question that all scientist agree that the basic unit off life is a cell and scientist said this to be a cell theory... and they also said that if a theory survive continuou
When a piece of thread is tied tightly around an animal pancreatic duct the animal experiences difficult in digestion but does not suffer from diabetes mellitus.Explain why?
why are the microspores in groups of four?
Explain the Ebb-Phase of Stress Response? This occurs immediately following injury and lasts for approximately 24-hours. The so-called ebb phase, which is the early phase of th
Agar Agar is a polysaccharide found in the cell walls of some red algae and is unusual in containing sulfated galactose monomers. Certain marine algae of the class Rhodophyceae
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