Which is a characteristic of the psat

What did pavlov initially notice about the animals in his original research after conditioning took place?

Dna is a polymer of which consist of a sugar, a phosphate group, and a a. amino acids; nucleotide b. nucleic acids; nucleotide c. nucleotides; nitrogenous base d. nucleotides; nucleic acid e. proteins; nucleotide

What is 7/81 as a percentage? round your answer to the nearest tenth of a percent.