You are trying to decide what you should do about a problem. you are thoughtful in trying to come up with a solution. what part of your brain are you using?

Prefrontal cortex is the part of the brain involved in problem solving.

Explanation:

The prefrontal cortex is the cerebral cortex located to the front of the brain. it is the area of the brain vital to problem-solving. it is the part of the cerebrum. The Cerebrum is also responsible for judgment, creative thinking, behavior, smell, personality, muscle movement and attention other than problem-solving. The striatum is also a vital part of  the brain involves in deciding between options.

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