At some of the lowest light concentrations, ________ can still grow well due to their ________, which effectively harvest photons for energy
A) green bacteria / antenna pigments
B) green bacteria / chlorosomes
C) purple bacteria / antenna pigments
D) purple bacteria / chlorosomes
Answer: B
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A PCR procedure that allows a determination of the amount of a particular DNA fragment that is present in a sample is called
A. reverse PCR. B. real-time PCR. C. quantitative PCR. D. analytical PCR.
Which of the following is an important function of The Vertebrate Skeleton?
A. support and locomotion B. blood formation C. calcium homeostasis D. protection of soft tissues such as the brain E. All of the choices for this question are correct.
Which of the following describes the curve labeled “D” on graph?
a. a primary response to the initial antigen b. a secondary response to the initial antigen c. a primary response to an antigen distinctly different from the initial antigen d. a secondary response to an antigen distinctly different from the initial antigen e. none of the these
Cellular respiration in eukaryotic cells requires oxygen. What is this process called?
A) heterotrophic B) anaerobic C) prokaryotic D) aerobic