Answer:
Deletion beacuse it is missing the GGG
Neurons process and transmit information
Answer: C
The substance that must come through the cell membrane for the cell to live is nutrients. Cells would die if they did not get nutrients. Nutrients are what keeps the cell running.
Answer:
A. The lithosphere contains both the crust and the uppermost rigid layer of the mantle
Explanation:
The statement that describes the difference between the crust and lithosphere is that the lithosphere contains both the crust and the uppermost rigid layer of the mantle.
- The earth is divided primarily into 3 concentric layers; crust, core, and mantle.
- The crust is the outermost layer of the earth. It is a very thin layer.
- The lithosphere, on the other hand, is the crust plus the upper rigid layer of the mantle.
- This is the main difference between the crust and lithosphere.
Resting membrane potential refers to the voltage across the membrane of a resting neuron. The resting membrane potential of a neuron is around -70mV. The positively charged ions like the sodium and potassium, negatively charged ions like the chloride are found on the membrane and around the neurons.
The processes that maintain a steady resting membrane potential are the-
(a) Diffusion and active transport- In diffusion, ions like the sodium and potassium move down their concentration gradient through the channels on the membrane of the neuron. In active transport the ions move against their concentration gradient using ATP as a source of energy.
(b) The Donnan effect- It is the attraction of positively charged ions like sodium and potassium and repelling of negatively charged ions like chloride by the huge impermeant negatively charged intracellular molecules.
