ESO 2 Science 9

Interaction and Coordination in Living Beings

What to Learn

  • The role of interaction in the living beings.
  • Interaction in animals (I): stimuli and receptors.
  • Interaction in animals (II): the need of a coordination process; the nervous systems.
  • Interaction in animals (III): effectors.
  • Interaction in plants: tropisms and nastics.


Interaction in Animals

Butterfly larvae trick ants with scent and sound. Ecologists report in Science how a species of butterfly tricks red ants into caring for them. The larvae chemically "smell" like ants, and can imitate noises that the ant queens make. Streamed from