Which of the following is not correct?

  1. Cilia and flagella are the outgrowths of the cell membrane
  2. Flagellar movements help in the swimming of spermatozoa, maintenance of water current in the canal system of sponges
  3. Locomotion of Protozoan like Euglena is also carried by cillia
  4. 40-50 percentage of body weight of a human adult is contributed by muscles

NCERT page number 303

20.2 Muscles

Locomotion And Movement

Difficulty Level:

  • 13%
  • 21%
  • 60%
  • 8%