Ocean currents do not move in straight lines; instead, they curve across the planet. what is responsible for these patterns of movement?

a. differences in water density
b. differences in water salinity
c. the rotation of earth
d. differences in water temperature

i think that d. wind is the answer.   i missed the question when i answered a. currents.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.