The average estimated cash rent was $202 per acre on top quality land, $161 per acre on average quality land, and $124 per acre on poor quality land. This was an increase in rental rates of 2.0% for top quality land, 1.9% for average quality land, and 2.5% for poor quality land.
R-Group. In solution it is the nature of the amino acid R-groups that dictate structure-function relationships of peptides and proteins.
Chapter 1 & Chapter 2 - Chemistry and Life. Correct. The structure of the amino acid R group determines the identity and character of amino acids. The amino acid phenylalanine is classified as a nonpolar amino acid. In addition, it is known as an aromatic amino acid because of the ring structure of its R group.