Reflexes may be coordinated by the brain or by the spinal cord. in reflexes co-ordinated by the brain, there are no relay neurones. suggest why there is a difference in the mean speed of the impulse for the two reflexes.

b. read the phase at the intersection of any given temperature and pressure.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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