Matthias Schleiden discovered that all plants were composed of cells in 1838. In 1839, Theodor Schwann shared his discovery that all animals were composed of cells.
Schwann.
Theodor Schwann.
Robert hooke
Rudolf Virchow first stated the principle "omnis cellula e cellula," which means that all cells arise from pre-existing cells. This observation was made in 1855 during his studies on cell division and growth.
Matthias Schleiden
Yes, all animals are made up of cells. Cells are the basic structural and functional units of living organisms, including animals. These cells work together to form tissues, organs, and organ systems that allow animals to survive and function.
All plans and animals are made of cells
August Weismann.
theodor schwann
The original cell theory was made hunderds of years ago, and was made of three parts. It said that all living things are made up of one or more cells, that all cells come from other cells, and that cells are the basic structure of life.
Rudolf Virchow said that all cells come from existing cells.
Schleiden and Schwann came up with what is known as "The Theory of Cells" or "Cell Theory." The main principles of "Cell Theory" are: 1. All living things are made up of cells. 2. Cells are the smallest units of living things 3. Cells only rise from existing cells. Schleiden said that All plants are made up of many different kinds of cells. Schwann added to that and said that All animal are made up of many different kinds of cells. Schwann also said that growth and development is due to the division of cells.