Which scientists had observed plants under the microscope and realized that all the different parts of plants were made of cells, each cell having a nucleus? A Robert Remak
B Rudolf Virchow
C Theodor Schwann
D Matthias Schleiden

D. Matthias Schleiden

Explanation:

Matthias Schleiden had observed plants under the microscope and realized that all the different parts of plants were made of cells, each cell having a nucleus.

do your own work

you really need to do your own work and stop cheating

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.