Answer:
depolarization leading to action potentials
Explanation:
The voltage-gated Na+ channels are responsible for rapid depolarization phase of the action potential. Action potential generation require depolarization of neuronal membrane which is acquired by influx of sodium ions through voltage gated sodium ion channels. If the Na+ channels are blocked, there will be no influx of sodium ions to cause depolarization hence action potential will not be generated.
Answer:
true
terrestrial planets
true
true
true
false
I am not sure about the last one
Answer:
C) A, B, and C
Explanation:
The amount of Earth's surface water that is not located in the oceans is the addition of A, B, and C in the pie chart.
About 71% of the Earth's surface is covered by water. The ocean has been reported to hold about 97% of all the water on earth while water present in air, rivers, lakes, glaciers and biological systems constitute the remaining percentage.
<em>From the chart, D can be said to represent the amount of earth's surface water held by oceans while the rest (A, B, and C) can be said to be the amount of Earth's surface water that is not located in the oceans.</em>
The correct option is C.
Answer:
The correct answer is D sister chromatids;centromere
Explanation:
After DNA replication during s phase or synthesis phase of interphase of the cell cycle,each chromosome has a copy and the cell that is newly formed is now 4n.
We cal these identical pairs sister chromatids and they are held together by a centromere
Answer:
The answer is actually B) Memory T. Memory T cells rapidly produce large numbers of effector T-cells when re-exposed to their antigens, which provides the immune system memory against past infections.
