Industrial farming practices have harmful ecological impacts due to the use of fertilizers and processed animal feed. The fertilizers contain toxic chemicals that might not appear on the plants, as their primary role is to eliminate pests. The real harm occurs when fertilizer particles dissolve in water and seep into the soil, contaminating the water table. This results in the water that was once clean becoming tainted. The build-up of various pesticides can lead to the death of aquatic life and even affect humans. Furthermore, over time, it can degrade soil quality by reacting with other soil components to form toxic substances.
From what I understand, I believe it is Thaliacea. This perspective comes from the fact that, unlike Appendicularia, Thaliacea possesses both a tail and a notochord during its adult phase.