Producers, consumers, and decomposers.
food chain
trophic levels.
A food chain runs off of different levels - each having one living organism in it, per food chain. The levels indicate a section where energy is used up by an organism - namely the one that attained the energy.
The tropical rainforest food chain has four levels. The four levels are the primary producers, the primary consumers, secondary consumers and the tertiary consumers.
energy pyramid or nutrient pyramid.
Calories
They are the third level of the food chain. The two levels that are before it is the producers and primary consumer.
Bioaccumulation
Decrease in higher levels.
food chain- grass->tipaklong->frog->snake->eagle->bacteria The different steps or levels of a food chain or web are called "trophic levels." They can also be characterized as producers or consumers. The consumers can be characterized as first order, second order, tertiary, etc. And then there are the scavengers and decomposers.
It depends. A food chain could be fairly long with about four or five steps in it, or a food chain could have just two.
all the other levels will overpopulate