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Q. What is the mechanism by which the neural impulse is transmitted along the axon?
The neural impulse is transmitted along the neuronal membrane through depolarization of consecutive neighboring regions when a region in the internal surface of the membrane is depolarized it becomes more positive in relation to the neighboring internal region so positive electrical charges (ions) move towards this more negative region and voltage-gated sodium channels are activated and open. The action potential then linearly propagates along the membrane waiting near the presynaptic region of the axon.
Discovery of Plant Hormones To date, five major classes of plant hormones have been discovered namely auxins, gibberellins, cytokinins, abscisic acid and ethylene. It is possi
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In the evolution of whales, there is evidence that whales and hippo form a monophyletic group. Show all the evidence that supports the close relationship between whales and hippos
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Gregor Mendel's Law of Independent Segregation referred to which of the following genetic elements? A. Alleles of two genes that reside on the similar chromosome B. Alleles
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Q. What are Zoonotic Diseases? The World Health Organization defines Zoonoses (Zoonosis, sing.) as "Those diseases and infections, which are naturally transmitted between verte
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