Question

what is the most likely source of endocrine disruptors in aquatic ecosystems? human medicines that pass through sewage plants

Explanation:

Endocrine disruptors in aquatic ecosystems can come from various sources. Human medicines that pass through sewage plants are a significant source. When humans take medications, a portion of these drugs is excreted unchanged or as metabolites. Sewage treatment plants may not completely remove these pharmaceutical compounds. As a result, they can enter aquatic environments. These substances can mimic or interfere with the body's natural hormones, potentially causing adverse effects on aquatic organisms.

Answer:

human medicines that pass through sewage plants