I NEEDED HELP
on key concept

My results provide evidence of variations within the classroom since everyone's results do vary and show different lengths. On top of that, the results show the diversity between the class and it represents the difference of the measurments thorughout the classroom population.

I don’t exactly know what you mean, but I think on the key concept it is trying to tell you to find your classmates forearm length and find the average of the class, and then see how your arm length varies to your classmates.

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.

i hope this you