Select all of the true statements about surface currents. a. they form gyres. b. they transport heat across earth's surface. c. they are known as "thermohaline circulation." d. they are caused by wind and earth's rotation. e. they are driven by density differences in the water. f. they take hundreds to thousands of years to complete a cycle.

Hope this helps! :)

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg