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 straited muscle fibre represent both thick and thin filaments.
(c) Human skeleton has 206 bones.
(d) There are 11 points of ribs in man.
(e) Sternum is present on the ventral side of the body.

State whether the following statements are true or false? Also give reasons for your answers. a) Only one line can pass through a given point. b) All right angles are equal. c) Circles with same radii are equal. d) A line segment can be extended on its both sides endlessly to get a straight line. e) From the figure, AB gt AC .