In both of these biomes, the life forms or biosphere, are limited greatly by the interaction or lack of interaction with another of earth's spheres. what sphere is that?

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

How does a lytic infection differ from a lysogenic infection?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain