<span>specialized cells, thats what bone and blood cells are considered </span>
A and B are correct. The circulatory system is all of that.
V= velocity
λ= wavelength
f= frequency
v= λf
v= 25 x f
You'll need the wave frequency to complete this equation
Buffers maintain a pretty stable pH level, resisting any large changes. When introduced to a base, it will act as an acid to counteract it, and vice versa.
