Homework answers / question archive / showing only 10% of energy flows to the next level the tendency for toxic substances to increase in concentration at progressively higher levels of the food chain energy flow is one way nutrients are cyclic a directional, cumulative change in the species that occupy a given area through time starts from barren ground, e

showing only 10% of energy flows to the next level the tendency for toxic substances to increase in concentration at progressively higher levels of the food chain energy flow is one way nutrients are cyclic a directional, cumulative change in the species that occupy a given area through time starts from barren ground, e

Biology

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1. showing only 10% of energy flows to the next level
2. the tendency for toxic substances to increase in concentration at progressively higher levels of the food chain
3. energy flow is one way
   nutrients are cyclic
4. a directional, cumulative change in the species that occupy a given area through time
5. starts from barren ground, e.g. new islands or de-glaciated areas
6. starts from disturbed areas, e.g. abandoned farm land or storm ravaged land
7. first organisms to occupy an area
8. may come and go
9. a stable, self-perpetuating array of species in equilibrium with one another and their habitat
10. the number of different species within an area