A. chlamydomenas
B. algae
C. volvox
D. euglena
Correct Answer:
Option C – volvox
Explanation
Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. It forms spherical colonies of up to 50,000 cells.
Its plant body is coenobium and consists of large number of biflagellate, pear-shaped cells.