How are arthropods beneficial to other living things?

Phylum Arthropoda include organisms from the Class Insecta
which are insects, Class Arachnida, which are spiders and Crustacea, which are lobsters,
crabs, crayfish. There are others however, they all have an exoskeleton which is molted
when they grow and jointed appendages. One example of how Arthropods are beneficial is
in the role of insect pollinators. Without bees and other pollinators, flowering plants
would have a difficult time with the transfer of pollen to the female pistil for
fertilization to occur. Another way Arthropods are beneficial is in the role of
scavengers. Many Crustaceans feed on dead organic matter or wastes. Examples of these
types of scavengers are crabs. They help to remove debris from the ocean environment.
Another example of how Arthropods are beneficial is that they are a major food source
for other organisms. Insects, crabs, lobsters, shrimp, spiders, etc. are food to a
variety of organisms. Krill, which are tiny crustaceans, are the major food source for
many whales and a key member of the food chain in the Arctic region. Arthropods are very
successful and have adapted to every biome on Earth.