Some what are beneficial to humans?
fungi parasites roots humans suffering natural disasters honeybees poisons orchids
A B C D E F G H
All parasites are harmful to their host, but some are beneficial to humans.
Some parasites are beneficial to humans
Some what are beneficial to humans? (A) fungi (B) parasites (C) roots (D) humans suffering (E) natural disasters (F) honeybees (G) poisons (H) orchids