Which organ system is responsible for transporting oxygen throughout the human body?
a. digestive system
b. respiratory system
c. circulatory system
d. excretory system

c. movement because i took the test and it lets me review my answers

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 

-hails tea

explanation:

-t poses