Fatty acids can be metabolized for energy; they enter aerobic respiration ________
a. at the electron transport step as the reduced electron carriers FADH2 and NADH
b. at glycolysis, but first must be converted to glucose
c. at the Krebs cycle after cleavage and conversion to acetyl-CoA
d. in glycolysis after enzymatic conversion to PGAL
c
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A friend tells you a story about his grandmother, who moved to your city from her home across the ocean when she was very young, bringing with her a pair of mice that were commonly kept as pets where she was born. Shortly after arriving, however, the mice escaped. After listening to this story, you do some research and discover that the wild mice that live in your city have only been documented within the past half century and, although they share distinctive traits with domesticated mice that only exist near your friend’s grandmother’s birthplace, they are unable to interbreed. Which statement could be true?
a. The mice in your city have acquired a mutation that renders them incapable of reproduction. b. The two populations of mice are unable to reproduce due to reinforcement. c. Your friend’s grandmother inadvertently caused allopatric speciation via dispersal. d. The similarity between these two species of mice can be explained by vicariance.
The three domains of life are
a. eukaryotes, prokaryotes, and viruses. b. animals, plants, and microorganisms. c. Prokaryota, Eukaryota, and Protoctista. d. Archaebacteria, Eubacteria, and Eukaryota. e. Archaea, Bacteria, and Eukarya.
Prokaryotic and eukaryotic cells generally have which of the following features in common?
A. A membrane bound nucleus B. a cell wall made of cellulose C. Ribosomes D. Flagella or Cilia that contain microtubules E. linear chromosomes made of DNA and protein
Why are epidemiological measures useful?
A) They help to track down patient zero. B) They allow the CDC to profile those most likely to need quarantine. C) They specify how much protection you need if coming into contact with someone that has the disease. D) They allow physicians to estimate when a patient can return to work. E) They provide insight as to where public health campaigns or prevention efforts may be needed most.