The arranged events in respect to the function of the channels, ion permeability, and changes in membrane potential from top to bottom include:
1. opening of voltage-gated Na+ channels
2. Na+ ion flow into the neuron increases
3. depolarization of the membrane to +30 mV
4. K+ ion flow out of the neuron increases
5. repolarization of the membrane.
<h3>What is Membrane potential?</h3>
This is defined as the difference in electric potential between the interior and exterior parts of a biological cell and also refers to the potential gradient which facilitates the movement of ions in a cell in one direction.
In a cell, the series of events which occur according the variables such as ion permeability is opening of voltage-gated Na+ channels and is usually ended by the repolarization of the membrane.
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The answer is; Divergent boundary zone; volcanic activity; fissure zones
The mid-Atlantic ridge is a divergent boundary. Such a boundary, that majorly occurs in ocean beds, is exhibited by signs of ocean-floor spreading. As the two plates move away from each other, the magma from the mantle rises to fill the void. Mountain ranges form along the boundary due to the numerous fissures between the two plates.
Hormones because if you think about it. Vertebrates must have backbones and mammals have them. And, humans are basically mammals. And the glands secrete hormones.
The organisms are now called Linnaeus
Answer: Option (1)
Explanation:
The extinction event played an important role in the creation of new diverse life forms on earth. After an extinction event, both globally and locally, more than 75% of animal species gets vanish and the only those highly resistant life supporting organisms survive and with due course of time, they undergoes evolution, thereby bringing changes to the existing life forms. This is how they initiates and helps in the increasing species diversity.
Thus, the correct answer is option (1).
