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Q. Of which cells is the nervous tissue constituted? How is the generic function of this tissue related to the characteristics of the main cell type that forms it?
The nervous tissue is formed of glial cells and neurons.
The function of the nervous tissue is to transmit and to receive neural impulses (transmission and reception of information). This function justifies the characteristic morphology of neurons, with membrane projections dendrites to get information and an elongated membrane projection axon or nerve fiber to transmit information at distance. In their turn, the glial cells support the neurons and facilitate their work sometimes acting as insulators.
in humans, maleness of is determined by a pair of sex chromosomes called X and Y. (a)what is the genotype for males? (b)what is the genotype for females?
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State the Transmission of Visual Sensation This process takes place in the visual pathway from the retina to the visual cortex. 'The impulse originating in the retina travels a
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Q. What is dicoumarol? How does this substance act in the clotting process and what are some examples of its toxicity? Coumarinic anticoagulants cannot be administered during p
- The chromosomes at each pole uncoil and elongate to form the chromatin. - A nucleolus reappears at each pole. - Spindle fibers and asters disappear and centrioles split. - A nu
Bottleneck for External Sources for Health Care The implementation bottlenecks arising out of funding by external sources have important implications for the resource allocati
Phytoflagellates – Protozoan Phytoflagellates are autotropbs that possess chlorophyll or other related pigments, and store food as fats, oils and starches (other than glycogen
Why do scientists make biological collections? What are the scientific reasons for doing a collection? How is a collection done?
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