Paleontologist have discovered many fossils that document the evolution of birds from dinosaurs that roamed earth long ago what does the fossil record tell us about this change ?

It happened slowly over a long period of time.

Explanation:

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

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