A lizard lies on a rock to raise its body temperature.

What is this called?

The answer is ectothermy. Ectotherms are organisms with a body temperature thats largely determined by its external environment (Reptiles/ amphibians/ insects/plants). These organisms adjust their temperature behaviorally by things like basking and moving into the shade. They are animals whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. 

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 

actually the answer is c