10 F
The diagram below represents changes that take place within the human body. The diagram
represents * IS
Stability
Stimulus
Instability in
internal conditions
Response
Stability
cellular differentiation
dynamic equilibrium
gene interaction
biological evolution

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .