question_answer

  Answer the following questions (a) What is division of labour with reference to multicellular organisms? (b) Why striated muscles are also knownas skeletal muscles? (c) Which structure takes impulse a way from a neuron.

Answer:

  (a) In multicellular organisms, different functions of the body are assigned to different group of cells, i.e., these organisms show division of labour.                                                                                                                          (1) (b) It is because these muscles are attached to bones.                                                                                                   (1) (c) Axon of neuron carries impulse away from neuron.                                                                                                  (1)