Matching Pairs SU1.3. MATCH THE VITAL FUNCTIONS.Online version THE DIFFERENT VITAL FUNCTIONS IN LIVING THINGS by M. Dolores Rueda 1 2 ASEXUAL REPRODUCTION OCCURS WHEN ONLY ONE ORGANISM IS REQUIRED. 3 4 5 ANY CHANGE IN THE ENVIRONMENT CANCAUSE A REACTION. 6 ANIMALS USE THEM TO DETECT SOME STIMULI. ARE OBTAINED FROM THE ENVIRONMENT AND TRANSFORMED INTO ENERGY. THEY CAN´T PRODUCE THEIR OWN FOOD. THEY FEED ON THE REMAINS OF DEAD PLANTS AND ANIMALS.