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Fill in the blanks
publish date: 2026/06/14 19:31:48.091374 UTC
Complete the sentence below by dragging the correct scientist names into the placeholders:
Cell Theory was first explained by (1) in 1838 and by (2) in 1839.
Please drag and drop the selected option in the right place or type it instead
Hooke
Leeuwenhoek
Schwann
Schleiden
Correct Answer
(1) Schleiden
(2) Schwann
Explanation
Matthias Schleiden (1838) studied plant cells and was the first to articulate the core ideas of Cell Theory. Theodor Schwann (1839) extended this work to animal cells, together establishing the foundation of modern cell biology.
Reference
Biology: A Self-Teaching Guide