Why Do Many Non-Native Species, Such as a Prickly Pear

question 3

Multiple Choice

Why do many non-native species, such as a prickly pear cactus brought to Australia from South America, rapidly become abundant when first introduced?

• A)The climate in the new site is more favorable than in its native site.
• B)Non-native species increase their reproductive rate when introduced.
• C)There are fewer predators and parasites capable of attacking the non-native species in the new site.
• D)The carrying capacity at the new site is higher than at the native site.
• E)Growth changes from an S-curve to a J-curve at the new site.

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