What is the structure labeled with an arrow? Correct
B. Nucleus

Which statement best describes a cell?
Correct
B. Smallest structural and functional unit of an organism that can be said to be alive.

Which of the samples shown below are eukaryotic?
Correct
D. A, B, and D

Which of the samples shown below are photosynthetic?
Correct
B. A, B, and D

What do the following results from the TEST FOR LIFE tab indicate about the sample?
Correct
D. Answers A and C

Which of the following is an advantage of solar energy?

When analyzing tree rings, what do scientists assume a thin ring indicates?

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.