scientist
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.
In 1838, German botanist Matthias Schieiden concluded that all plants came from cells.
yes they do
Yes. All complex plants and animals are composed of cells.
Yes. All flower petals, and all parts of plants are composed of cells.
Schleidan
Matthias Schleiden: Co-founded cell theory with Theodor Schwann, proposing that all plants are composed of cells. Theodor Schwann: Co-founder of cell theory; proposed that all animals are also composed of cells. Rudolf Virchow: Established the concept of "omnis cellula e cellula," asserting that cells arise only from pre-existing cells.
His name was Thomas Schwann. He discovered it in 1839.
Matthias Jakob Schleiden
The botanist who concluded that all plants are composed of cells was Matthias Schleiden. He, along with Theodor Schwann, formulated the cell theory in the 19th century.
All living organisms are cells or are composed of cells. Only plant cells have cellulose which makes them stiff and upright. Plants need cellulose because they don't have bones like you and me.
No, that was Matthias Schleiden.