Does the distribution of bases in sea urchin dna and salmon dna follow chargaff’s rules?

Yes they follows,

Explanation:

The precise response to this query would be yes. The distribution of bases in sea urchin DNA and salmon DNA follows the rules of chargaff, because% a is approximately% t and% g is approximately% c in both species. The rules of Chargaff's are used to forecast the proportion of one or more bases in the DNA of a species if at least one value is known.

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