This is because the GP120 protein
of the HIV virus that forms the ‘knob’ is
essential for the infection of CD4 cells
of the immune system by the virus. The glycoprotein is, therefore, a good
target for vaccines especially since the
molecule is highly conserved because most mutations in the region could be highly deleterious to the virus.
<span>Cool water can be used to set bends in PVC pipe. Prior to bending, the pipe must be heated. After bending the PVC pipe to the desired angle, cooling with damp sponges or rags makes the setting process go faster.</span>
It takes place in the matrix of the mitochondria, which is the powerhouse of the cell.
D should be the correct answer. Hope this helps!
The answer is B. Acceleration
Acceleration definition- In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.
