Answer:
if rhizobium bacteria is added to the soil the soils nitrogen levels will increase.
this because that the rhizobium bacteria is able to convert atmospheric nitrogen into a more soluble form .plants arent able to absorb nitrogen directly from the air so the rhizobium helps the plants to obtain nitrogen.
Answer:
1 in 5-10,000 individuals in the general population
Answer:
The answer is B. Emissions from coal burning power plants which then rain down on waterways hopefully this helps!
Answer:
E. that area of the membrane is in the absolutely refractory period.
Explanation:
Refractory period is a period during which neuron cell cannot be stimulated (depolarized). This is why the action potential can only travel in one direction from the neuron body towards axon.
Refractory period occurs because of the inactivation of voltage-gated sodium channels (while action potential is at its peak) which cannot be open for a certain period of time. and membrane cannot be depolarized.
