Mattias Schleiden and Theodor Schwann contributed to the part of the cell theory that states, "All organisms are made of cells." Schleiden observed the cells of plants, while
Schwann viewed animal cells. What similarities might be seen when comparing plant
and animal cells?
A. Chloroplasts synthesizing sugar,
B.Nucleoli assembling ribosomes,
C. Large vacuoles maintaining cell structure
D. A cell wall providing protection for the inner organelles.