Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell.
What is a mesosome in a prokaryotic cell? Mention the functions that it performs.
What is the site of gaseous exchange in an insect?
How does butter in your food gets digested and absorbed in the body?
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