Which of the following bases are found in rna but not in dna
a. guanine
b. cytosine
c. uracil
d. adenine?

explanation:

idk

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 

answer; ///the above statement is (true);