Answer:
<h2>
potassium</h2>
Explanation:
The heartbeats of the heart are controlled by the sinoatrial node also known as the pacemaker of the heart. The impulse is generated in the conducting cells of the pacemaker as a result of the movement of sodium, potassium and calcium ions.
The sodium channels allow the movement of sodium into the cell which depolarizes the membrane from -60mv to -40 mv. At this point, the calcium gated channels open which allow the entry of the calcium in the cell which depolarizes the cell up to +5mv.
At this point, the potassium channels open which allows the potassium ions to move out of the cell. This repolarizes the cell and hence the cycle again begins. Reducing the permeability of the potassium ions help generate the autorhythmicity due to repolarization and thus is the correct answer.
The answer is chromosomes. The chromosome contains the DNA nuclei. It contains all the genetic material of the parents.It is often duplicated in the cell metaphase of the cell division. Chromosomes differ from one organism to another. They are often visible under the microscope.
Answer:
Explanation:
The detailed steps are as shown below
- but magnitude of force F = √ [ 1 - v²/c²]
but acceleration twice as great as the force required to produce the same acceleration;
4 = 1 / [ 1 - v²/c²]
1/4 = 1 - v²/c²
v²/c² = 3/4
v/c = √ [3/4]
v = 0.87c
but speed of light c = 3 x 10^8m/s
v = speed of the particle = 0.87( 3 x 10^8m/s)
v = 2.61m/s
I would go with b-genetic engineering (:
Answer:
C is the correct answer for your question
Explanation:
the fox can easy transfer to other animals n so can the hawk but for the snake, no
