Answers

2014-09-23T20:49:52+05:30
yes most of the food chains consists 4 steps like
GRASS-------RABBIT--------FOX--------TIGER
because in an ecosystem the food chains are as followed
PRODUCERS---PRIMARY CONSUMERS---SECONDARY CONSUMERS---
TERITIARY CONSUMERS.
4 4 4
2014-09-23T21:00:38+05:30
Most of the food chains consists of 4 steps because:-
1)The energy transfer goes on decreases from step to step.
2)So less energy is received to the top carnivore.
3)This may lead to extinction of top carnivores.
4)So,many food chain consists of four steps.
7 4 7