Question

DEFINE THE FOLLOWING:-
1:FOOD CHAIN
2:BIOTIC FACTORS
3:ABIOTIC FACTORS
4:ECOSYSTEM

Answer 1

Food Chain - A series of organism each depending others for food
Biotic Factor - A living component attack or affect an ecosystem
Abiotic Factors - A non living component which affect or influence an ecosystem
Ecosystem - A system formed by the interaction of a community of organism with  their environment

Answer 2

FOOD CHAIN:
                      a  food  chain  is  a  food  dependence  system  in  which  a serious    of  organisms  are  dependent  on  each other  for  food  which  is needed  for  their  survival.

BIOTIC FACTORS:
                          the  biotic  factors are the living things  that affects the life of other living  compounds in the ecosystem

ABIOTIC FACTORS:
                              the  abotic factors are non living things that affects living  organisms in the ecosystem

ECOSYSTEM:
                      a  biological  community  of  living  organisms  and  their physical  environment.  where  there  is  a  network  of  interactions between  them