50 mol of p4o10 how many moles in p

Ithinks its false. tell me if im wrong

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.

For a collision to be successful you need 2 different objects