A fragment of a wild-type polypeptide is sequenced for seven amino acids. The same polypeptide region is sequenced in four mutants. Wild-type N . . . Thr-His-Ser-Gly-Leu-Lys-Ala . . . C polypeptide
Mutant 1 N . . . Thr-His-Ser-Val-Leu-Lys-Ala . . . C
Mutant 2 N. . . Thr-His-Ser-C
Mutant 3 N . . . Thr-Thr-Leu-Asp-C
Mutant 4 N . . . Thr-Gln-Leu-Trp-Ile-Glu-Gly . . . C

Required:
Determine the wild-type mRNA sequence.

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 

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.