Question

Which of the following is a major evolutionary advancement exhibited by protozoan cell in contrast with a bacterium?

• A. Formation of permeable cell membrane
• B. Presence of nucleus
• C. Presence of extensive system of cytoplasmic organelles
• D. Both B and C

Answer 1

The correct option is D Both B and C

Monerans are prokaryotic organisms. They lack a well-developed nucleus and cell organelles. But, on the contrary, protozoa have a well-developed nucleus and cytoplasmic organelles and are eukaryotic organisms.

So, option D is the correct answer.