Which of these are most likely homologous structures?
bat wing dragonfly wing tyrannosaurus arm

bat wing and dragonfly wing

bat wing and tyrannosaurus arm

dragonfly wing and tyrannosaurus arm

bat wing, dragonfly wing, and tyrannosaurus arm

good luck

explanation:

i still can't find this

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.