Like all valid scientific theories, modern cell theory
a. builds on the work of earlier scientists.
b. dismisses the theoretical developments of other scientists.
c. is complete and final as compared to earlier versions.
d. relies on the development of modeling techniques to progress

so your answer is:

builds on the work of earlier scientists

:)

The right answer is A.builds on the work of earlier scientists.

The cellular theory appeared in the 19th century, it consists of three principles:

1) All living organisms are made of at least one cell.

2) The cell is the basic organizational unit of life.

3) All cells come from other living cells

The cell is the structural and functional unit of an organism.

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