Organ systems maintain which of the following at just the right
levels to support life processes?
a.) pH
b.) Carcinogens
C.) Temperature and pH
d.) Carcinogens and pH

C.) Temperature and pH

Explanation:

Organ systems maintain the right temperature and pH levels to support life processes.

This is known as internal regulation or homeostasis.

i just did the same question

Explanation:

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 

mathematical model hope this