Because of thermohailine and other currents,
a. the oceans of the world exist as distinctly different bodies of water
b. the oceans of the world slowly mix, and are really one ocean
c. all of the oceans in the world have the same salinity
d. the temperatures of the oceans would become equal

As a bee feeds upon the nectar produced by a flower, the bee may become coated with the flower's pollen. as the bee flies from flower to flower, some of this pollen may contact a flower's pistil, resulting in pollination. this relationship between the bee and the flower is an example of a. parasitism b. commensalism c. mutualism d. competition