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Q. How do fishes do gas exchange?
Fishes "breath" through gills, branchiae or Gills, are highly vascularized organs specialized in gas exchange under water and present in aquatic animals (crustaceans, marine annelids, tadpoles and fishes). Gills are a respiratory organ (analogous, for instance, to lungs) containing very thin lamellae with many apparent blood vessels in direct contact with water.
In osteichthyes the gills are covered by a bony flap that protects them called as operculum, in chondrichthyes there are no opercula.
Effect of Environmental Factors some lower organisms, though the genetic determiners of the sexes are present, the ambient environment plays a decisive role in the development
DIFFERENC E BETWEEN LAMARCKISM AND NEO-LAMARCKISM - S.No Lamarckism Neo-Lamarckism 1. It refers of the original
What are the main limiting factors for the growth of a population? The factors that limit the growth of a population can be divided into biotic factors and abiotic factors. The
Estimation of protein by Miscellaneous parameters include? Miscellaneous parameters include Plasma amino acid levels Microbiological methods Chemical scoring
Explain The proteins stabilize emulsions The proteins stabilize emulsions and contribute physical and rheological properties, like thickness, viscosity, elasticity and r
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Explain Transition Period from Renaissance to Modern Period? The transition period from the Renaissance to the Modern period produced many notable workers and much literature.
Q. What are the major cellular features of the beings of the plant kingdom? The typical plant cells are eukaryotic (have nucleus), photosynthetic (use light to make food) and a
Explain the Advantage of Sponge Method? Advantage: The method is suitable when the surface to be swabbed is large or low incidence of microbes in the environment.
From an ecological point of view, species richness alone has limited value. More meaningful measures use the number of different species in a given area (species richness) as well
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