Zebra mussels native to the caspian sea migrated to the great lakes of the united states in the ballast water of ships . what problem is this an example of?

it would lead to upper respiratory infections and pneumonia.

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive