7.
C) Spinal column
8.
D) Moist
D. Sensory neurons pass information about the stimulus to other nerve cells.
Diffusion happens when there is a difference in concentration. So for water to diffuse out of the cell, the concentration of water has to be lower outside the cell, than inside the cell.
Answer:
A.
Explanation:
As we age our metabolism tends to slow down.The basal metabolic rate decreases almost linearly with age.
Energy requirement in old people tend to get less because of less physical activity.If energy intake, on the other hand, exceeds individual energy needs, fat accumulates in the body
difficulty in transporting hormones and waste products
