I need help please Biology

B, producers make glucose and oxygen for consumers to use during cellular respiration.

Explanation:

Producers 'produce' for consumers; producers being plants and consumers being animals. Producers turn carbon dioxide into oxygen, so we know A and D are wrong. And producers don't require oxygen, only carbon dioxide, so we know C is wrong too.

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