The chart shows Environmental Protection Agency data for forestry practices in Minnesota in the 1980's. Clearcutting timber involves leveling all the trees in a forest in strips and allowing the forest to re-grow completely. Selective cutting involves felling
only larger timber trees and allowing smaller trees to remain until they are ready to be harvested. The EPA measured soil and
water loss in these areas, and also tested uncut sections of forests (controls). The EPA measured water loss (water yield) and
erosion (sediment loss).
According to the chart
A)
selective cutting causes more soil loss by erosion, than clear-cutting.
in 1982, more water was lost from clear-cut forest soil, than in any other
year.
B)
clear-cutting and selective cutting cause similar amounts of water (water
yield) to be lost from forested areas.
in 1984 and 1985, selection cutting actually conserved more water and
saved more soil from erosion, than the uncut control forest.
D)

Match the descriptions / definitions with the term they best describe 1. three dimensional relationship of the different polypeptide chains in a multisubunit protein or protein complex 2. common folding pattern in proteins in which a linear sequence of amino acids folds into a right-handed coil stabilized by internal hydrogen-bonding between polypeptide backbone atoms. 3. the amino acid sequence of a protein 4. a region on the surface of a protein that can interact with another molecule through noncovalent bonding. 5. three-dimensional arrangement of alpha-helices and beta-sheets within a single polypeptide, typically stabilized by a variety of noncovalent bonds, including ionic and hydrogen bonds, and nonpolar interactions / hydrophobic force. 6. the chain of repeating carbon and nitrogen atoms, linked by peptide bonds, in a protein. 7. common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone. 8. portion of a polypeptide chain that has a discrete tertiary structure of its own and can often fold independently of the rest of the chain 9. regular local folding patterns in a protein, including alpha-helix and beta-sheet a. primary structure b. beta-sheet c. protein d. coiled-coil e. polypeptide backbone f. secondary structure g. side chain h. tertiary structure i. binding site j. alpha-helix k. quaternary structure l. protein domain

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection