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B. the west has a variety of climates and many different biomes

The cause of the intolerable acts was king george was furious about the boston tea party and closed the harbor and took away their self government until all the tea was paid for. the effect was these acts just stirred up more british hating feelings. now people in all 13 colonies were angry. b.

The answer would be letter c.

Iam pretty sure that the answer is either a. -  it would the ecosystem become more stable. or it is d. -  the larger number of species would make the ecosystem more prone to disease.. 
i would go with d.
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