Starfish are capable of growing a new starfish from a single arm if it is bitten off by a fish or pulled off by force. this type of asexual reproduction is called a) budding. b) fragmentation. c) binary fission. d) alternation of generations.

The correct answer is B. Fragmentation

poor water quality affects most estuarine organisms, including commercially important fish and shellfish. the pollutants that have the greatest impact on the health of estuaries include toxic substances like chemicals and heavy metals, nutrient pollution (or eutrophication), and pathogens such as bacteria or viruses.