Take this points ^_^
if you need points just follow me ok^_^
happy to help.​

Hahaha xusbe no cus

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.

Ahigh energy (high speed) particle (alpha or beta or neutron) are shot at the target;