What would happen if...

All the members of food chain are very important. If one wasn't there, then all the others would cease to exist. Most important is the sun. Without the sun, no life would be able to exist. If there was no sun, then there wouldn't be any producers. If there weren't any producers, then no herbivores or primary consumers could live. If there weren't any primary consumers, then all the secondary consumers, scavengers, and decomposers would die off also. This is why the sun is so important. Also, if there were no secondary consumers, then all the primary consumers would reproduce too much and eat all the producers and there won't be any food left for them and they would die out. This is why every single organism is important in the food chain.