There is a certain common fundamental feature that helps in classification of living organisms. The features that can be used in classification for a given specimen are as follows.
On the basis of above features, we can easily classify a specimen into its respective category.
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 meant by double circulation? What is its significance?
Dashing answer