Matthias Schleiden was a:

................examined a large number of .................and observed that all are composed of different kinds of cells which form the tissues.

Which of the following is the first level of biological organization that is considered a living entity?

Assertion $A$: Every cell is a wonderful marvel of the world. Reason $R$: $A$ cell takes in nutrients,converts them into energy,and performs specialized functions. Which option is correct for Assertion $A$ and Reason $R$?

Who coined the term 'cell'?

What is formed by the integration of organelles?