Vertical ocean circulation is generated by A. cold and dense ocean water sinking and warm and less dense water rising.
B. warm and dense ocean water sinking and cold and less dense water rising.
C. cold and dense ocean water rising and warm less dense water sinking.
D. the Coriolis effect.
E. prevailing winds.

Afarmer has applied a pesticide to control a pest population that is affecting her crops. the pest population has reacted as shown below. which best describes the process that the pest population has experienced due to this environmental change? a genetic diversity b natural selection c natural resistance d genetic resistance

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material