The carry air to microscopic air sacs called alveoli

"The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic. The bronchioles eventually end in clusters of microscopic air sacs called alveoli. In the alveoli, oxygen from the air is absorbed into the blood."(

https://quizlet.com/182073439/biology-lesson-5-flash-cards/)

The bronchi split into smaller and smaller tubes called bronchioles, which then end in microscopic alveoli (air sacs).

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