Aforest ecosystem can support a limited number of bears. this is because?

If their are to many bears all the bears will eat all the plants and smaller animals and keep multiplying so there would be almost no natural vegetation and less and less smaller animals which would eventually destroy the ecosystem and in the end everything dies including the bears. 

1) clean up you lab area2) dispose of the chemicals as instructed by your teacher3) put everything back where it belongs unless your teacher tells you otherwise4) dispose of gloves5) wash hands with soap and water