What threat do rusty crayfish pose as an invasive species?
a.
Rusty crayfish are poisonous.
b.
They consume the food supply.
c.
They kill the native crayfish.
d.
They eat all the young fish.
e.
They clog the natural rivers.

Option B

Explanation:

The answer is option B or "they consume the food supply ." Rusty crayfish are known as a invasive species because they are legal to buy, sell, and transport but putting them into public waters can have a negative impact on the waters. In this case Rusty crayfish will have a negative impact on a ocean or a lake because it destroys aquatic plant beds which some organisms use as homes, they also happen to be really aggressive eating animals so consuming the food supply for other animals is the main threat the rusty crayfish pose.

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