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Q. Besides vertebrates two invertebrate phyla contain species that make pulmonary respiration. Which are these phyla?
Terrestrial molluscs and the arachnid arthropods are the invertebrates that present pulmonary-like respiration, a few terrestrial molluscs have a mantle cavity filled with air that makes contact with richly vascularized tissues that work as rudimentary lungs besides their tracheal respiration some arachnids have book lungs thin folds resembling leaves of a book that make gas exchange.
Describe Genetic Recombination ? Genetic recombination, which provides the variation necessary for evolution, can occur through a variety of processes during cell reproduction:
Encystment – Protozoan Encystment is characteristic of the life cycle of many protozoan. The protozoan secretes a thickened envelope (cyst) around itself and becomes inactive
Q. Define a closed circulatory system? A closed circulatory system is one in which blood circulates only inside blood vessels for this reason the blood pressure is higher in so
DEFECT S OF HEART 1 . Blue Baby syndrome (Cyanosis) - Due to persisting foramen ovalis in atrial septum even after birth, the impure blood from right auricles comes to
RESPIR A T O R Y PIGMENTS - Resp. pig. is generally Hb (Fe is attached to globine by chellate bond). In Earthworm Erythroqruorine present. Haemocyanine (Cu) genera
explain chemical changes during cleavage
Define Viscosity and Consistency of Protein Systems? Viscosity and consistency of protein systems are the important functional properties in fluid foods, such as beverages, sou
development of chick
MICROORGANISMS : Great care must be taken in microbiological experiments, particularly with pathogenic (disease producing) organisms. Many microorganisms which are normally harmle
Define Surface Sampling Food contact surfaces (e.g. storage tank, packaging material, ripening room, utensils, equipments, refrigerators etc.) which directly or indirectly (wal
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