Which of the following is an example of symbiosis?

a. barnacles living on a whale's skin

b. a tree obtaining nutrients from the soil

c. phytoplankton absorbing the sun's rays

d. a blue whale feeding on zooplankton

Symbiosis is the result of co-evolution and co-evolution is the result of the interdependent evolution of t wo interacting species.

Symbiotic relationships are a special type of interaction between species.

Best example is:

d. a blue whale feeding on zooplankton