The correct answer is : Non-native species is the example that affects biodiversity.
These species can be an agent of unacceptable economic, biological or social aftermath.
However, these species still provides in the regional biodiversity like biotic interactions and species richness and ecosystem services.
Enzymes. They don't need it
This is true because other organisms are lower in the food chain
Virus is non living, but once it gets a host (something to live on), it is a living being.