Answer:
I don't know much but try D srry I'm not good at it
Other organism would have to compete with the Zebra Mussels and most likely cause a collapse within these different populations
The polar bears are going to fight for the different resources that will become limited in their environment
If organisms that lived there before had exceeded the carrying capacity then the ecosystem would no longer be able to sustain life
Answer:
(Bad idea)
Many people are against the idea of extending the DNA database because of the potential threat it has to our privacy. While a DNA profile provides very little information about someone, their DNA sample contains information that can reveal their ethnicity or how susceptible they are to disease. The risk of data abuse is therefore potentially high.
(Good idea)
A DNA database of everyone may make it easier for police to identify missing people and unidentified remains.
I found a good article that is helpful for your paragraph. It supports both sides. It wont let me link so just type in :
"Is it ethical to have a national DNA database?" and it should be the first article that pops up