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Q. What is an open circulatory system?
Open circulatory system is the one in which blood doesn't circulate only inside blood vessels but it also falls in cavities that irrigate tissues. In the open circulatory system the blood pressure is low and generally the blood called as hemolymph has low cellularity. Arthropods, protochordates and molluscs (the cephalopods are exception) have open circulatory system.
Amphibia n - 3 chambered heart 2 auricles and 1 ventricle. Sinus venosus and truncus arteriosus (its main part is pylengium) present. Incomplete double circulation prese
What gases will be taken in and given out by a green plant (a) in darkness, (b) in bright sunlight? a) In low light intensities a green plant will be taking in oxygen and
Relate Mitochondria organelles with eukaryotic cells Mitochondria are highly specialised organelles in eukaryotic cells. These perform the energy transducing process, and are o
the concept that new varieties of organisms are still evolving is best supported by the.......?
Treatment of travelers'diarrhea The most common cause of travelers' diarrhea, usually a self-limited illness lasting several days, is infection with noninvasive enterotoxigeni
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Define Needle selection for Suturing 1. Needle with a reverse cutting edge "the cutting edge is outside the curve" is preferable, because it prevents tearing, 2. Conventiona
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Q. How do the availability of water and light and the climate affect the growth of a population? The availability of light and water and the climate are abiotic factors that li
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