Question

Which of the following was Theodor Schwann's contribution to our understanding of cells

A. Cells are the basic units of life.

B. All plants are made of cells.

C. All animals are made of cells.

D. All cells are produced from existing cells.​

Answer 1

C

Step-by-step explanation:

In 1839, Theodore Swhwann, a German Zoologist examined bits of animals under a microscope and observed that animals were composed of cells.