Match the following:
a. teichoic acid:
b. direct stains:
c: chormophore:
d: differential stain:
e: acidic dyes
a. exclusively found in gram positive cell walls
b. uses positive ions which are attracted to the negtaive cell membrane
c. two or more dyes are used to identify
d. repulsion of these chromophores results in negative stains
e. a colored component of a salt dissolved in a liquid

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.

Why should organisms reproduce more offspring than will survive? select all that apply.