What do these two changes have in common? Bleaching clothes, and rust forming on a bicycle frame.

Both are chemical changes.
Both are changes of state.
Both conserve mass.
Both are only physical changes.

answer; i believe the correct answer to the above question is ( friction)

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.