Identify the mode of spread of the following diseases and list suitable preventive measures. a) Rat fever b) Diphtheria c) Tuberculosis Chemotherapy and radiation therapy are used in the treatment of which disease? What are the factors which lead to this disease?
As per the given model in the bracket, arrange the following information [[Disease -Pathogen -Victim ]] a) Foot and mouth disease b) Humans c) Malaria d) Bacteria e) Virus f) Protozoa g) Blight h) Cattle i) Plant

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

and after water is usually warmed by the sun the water temperature raises and then evaporates .