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Compared to amphibians what is an example of evolutionary novelty present in beings of the class Reptilia against the loss of water through the skin?
The reptile skin is keratinized and impermeable to water whereas the amphibian skin is permeable. The skin impermeability made impossible the cutaneous gas exchange done by amphibians and respiration became dependent on internal organs like lungs and airways.
Why is Superoxide radical scavenging of beverages such red wine, grape juice measured at 560 nm?
Signal transduction occurs when an extracellular signaling molecule activates a cell surface receptor. In words, this receptor change intracellular molecules changes a response. Th
Physical Concepts of Plant Water Relation - Diffusion Diffusion is a spontaneous process that leads to net movement of a substance from a region of higher concentration to a r
Cell structure and function All organisms, whether simple or complex, plants or animals. are composed of cells. For example, a bacterium or an amoeba is made up of just one cel
What is the life cycle of the gymnosperms? As all plants they show a diplobiontic life cycle, i.e., alternation of generations with diploid and haploid stages. The lasting (fin
Q. Explain about Hypoglycemia? It is a Greek term: hypo -meaning less; glyc- means sweet; and emia- means "of the blood". It is a condition in which less than normal amount of
features and clasification phylumechenodremate
What is the logic of the transfusional compatibility concerning the ABO blood group system? The transfusional compatibility for the ABO system takes into account the antigens s
What is Active Transport--Secretion This method is now a well accepted process of aqueous formation. The rate of aqueous humour formation depends on the rate of active solute
Which terrestrial vertebrate group is extremely rare in deserts? The Amphibians are terrestrial vertebrates very rare in desert environments (although there are a few species a
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