a. Neuron

b. Brain
If \(\frac{ a + bx }{ a - bx }= \frac{b + cx }{ b - cx} =\frac{ c + dx }{ c - dx }(x ≠ 0),\) then show that a, b, c and d are in G.P.
Figure 8.9 shows the strain-stress curve for a given material. What are (a) Young’s modulus and (b) approximate yield strength for this material?

The human nervous system is responsible for controlling and coordinating all the activities of the human body.
The Central Nervous System (CNS) comprises the brain and spinal cord.
The Peripheral Nervous System (PNS) comprises sensory/motor neurons and ganglion.