Which finding would have disproved Virchow’s hypothesis? a. Animalcules are not organisms.
b. Animals are made of non–cell-based matter.
c. Plants are made of non–cell-based matter.
d. Cells can generate from nonliving matter.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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