Bloodworms are organisms that live in water that is very badly polluted. The diagram indicates the point at which raw sewage enters a river. At which location would the number of bloodworms be the lowest?
Biology 0610 · IGCSE · Pollution
Bloodworms are organisms that live in water that is very badly polluted. The diagram indicates the point at which raw sewage enters a river. At which location would the number of bloodworms be the lowest?