The sugar and phosphate portion of the nucleotides are found on the dna twisted ladder. as the rungs as segments of the rails as conditions between the steps and the rails none of the above

the correct answer is none of the above

hope this helps

are there any answer choices

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