Barnacles are crustaceans that are unable to move on
their own, so they stick to other organisms such as whales. They grow
and develop on these surfaces without harming the host. Which of the
following describes the relationship between the barnacles and whales?
O mutualism: both the barnacles and whales are benefiting from this relationship
O parasitism: the barnacles are benefiting from the relationship while the whales
are unaffected
O parasitism: the barnacles are benefiting and the whales are negatively affected
by the relationship
O commensalism: the barnacles are benefiting from the relationship while the
whales are unaffected