question_answer 4)

Write true or false. If false change the statement so that it is true. (a) Actin is present in thin filament. (b) H-zone of striated muscle fibre represents both thick and thin filaments. (c) Human skeleton has 206 bones. (d) There are 11 pairs of ribs in man. (e) Sternum is present on the ventral side of the body.  

Answer:

(a) True (b) False, H-zone represents thick filaments. (c) True (d) False, there are 12 pairs of ribs in man. (e) True