Why is spotted knapweed not cause the same damage to its native ecosystem?

Why is Spotted knapweed a problem in the Great Basin? Spotted knapweed creates dense stands that crowd out more beneficial species.

Explanation:

A large, perennial taproot helps spotted knapweed survive fires. It also produces large quantities of seed that can thrive without competition from other plants following fire.

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before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.