2. how can zebra mussels cause native mussels and other shelled animals to die?
a. the zebra mussels feed on the native mussels and other shelled animals.
b. the zebra mussels rest on top of native mussels and shelled animals and crush them.
c. the zebra mussels force native mussels and shelled animals to move out of the
habitat
d. the zebra mussels cling to native mussels and shelled animals and prevent them
from eating.