Rising sea levels could increase the of ground water, making it undrinkable and harming aquatic plants and animals

rising sea levels could increase the salinity of ground water...

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.