Need to turn this in, in 10
mins please what’s the answer...thank you

Google it that might work

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.

Don’t know. don’t care.look it up on google