Answer:
Option (2).
Explanation:
The cell potential or membrane potential may be defined as the difference in the electric potential between inside and outside of the cell. The membrane potential of the cell changes during the propagation of action potential.
The resting membrane potential is -70mV. The influx of sodium ions causes the depolarization of the cell membrane. The cell potential changes from -70mV to + 30mV. The membrane potential becomes more positive during the depolarization phase.
Thus, the correct answer is option (2).
Answer:
Seeds are widely dispersed through the fruits hook-like bristles that embed themselves in clothing and the fur of mammals and feathers of birds. They are also spread by wind, water and soil.
Explanation:
Answer:
the third is correct I think
The rock cycle plays an important role in the process of calcium carbonate formation is that it is built by plankton and corals. Therefore, it is true that the rock cycle is influenced by the biosphere processes as well as the geological processes.
<h3>What is the significance of the rock cycle?</h3>
A rock cycle can be described as the process that leads to the formation of minerals and chemical elements because of the occurrence of natural processes near the oceans and water bodies.
Substances like calcium carbonate (CaCO₃) are one of the influential formations in the rock cycle. The formation of calcium carbonate is highly contributed by the plants and animals to form the plankton as well as the corals on reefs.
Therefore, the significance of the rock cycle has been aforementioned.
Learn more about the rock cycle here:
brainly.com/question/14929825
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