Explain How and Why Halobacterium and Salinibacter Are Said to Exhibit

question 26

Essay

Explain how and why Halobacterium and Salinibacter are said to exhibit convergent evolution even though they are phylogenetically distinct.

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Definitions:

Myelin Layers

Myelin layers are protective coverings made of fatty substances that surround the axons of some neurons, facilitating the rapid transmission of electrical impulses along nerve cells.

Propagation Speed

The rate at which a wave, including sound, light, or electromagnetic waves, travels through a medium.

Action Potential

A brief change in the electrical charge of a neuronal membrane; the physical basis of the signal that travels the length of the neuron.

Excitation Threshold

The voltage difference between a neuron’s interior and exterior that, if exceeded, causes the neuron to fire.