Will give the brainliest to the fastest and smartest answer!

what is responsible for the pattern of ocean currents?

a. differences in water temperature

b. differences in water salinity

c. earth's rotation

d. differences in water density

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?