On a scavenger hunt, you travel 3 blocks west, 2 blocks north, 4 blocks east, and finally, 2 blocks south. how far are you away and in what direction are you from your starting position?

a. 1 block west.
b. 1 block east.
c. 11 blocks southwest.
d. 2 blocks south.

oxygen +1 most likely

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