Question

........is called the classical period of cytology​

Answer 1

Answer:

The earliest (classical) cell theory was developed in the 1838 by plant scientist Matthias Schleiden and animal scientist Theodor Schwann. They each came to the same conclusion that the living things they studied were composed of cells.

Answer 2

Concept

Classical music was popular between around 1730 and 1820. Between the Baroque and Romantic periods is the Classical period. Classical music has a lighter, cleaner texture than Baroque music, yet it uses form in a more sophisticated manner.

Given

........is called the classical period of cytology​

Find

We are asked to fill in the blank

Solution

Plant scientist Matthias Schleiden and animal scientist Theodor Schwann created the first (classical) cell theory in 1838. They all came to the same conclusion: the live objects they were studying were made up of cells.

Hence the blank fill be filled by the earliest classical cell theory.