The answer is D matter and energy shown in the question can change forms and is transferred to other locations for organisms to be used as building blocks for others.<span />
When neurons are not producing electrical signals we say that they are at resting phase: voltage across their membrane is called the resting membrane potential, or the resting potential.
This potential is determined by the concentration of ions (Na, K) across the membrane and by membrane permeability to each type of ion. While the ions move through channels down their gradients they lead to a separation of charge and that is what creates the resting potential.
The membrane of the neuron is much more permeable for K ions so the resting potential is close to the equilibrium potential of K+.
The answer is B. Paleozoic
This era was the first era where insects, amphibians, and reptiles roamed the Earth.
Hope this helps!
Fire is not a living thing, and abiotic factors are the factors in an ecosystem that are non-living. So, fire is an abiotic factor in an ecosystem, though its not mentioned alot.
