Mitochondria arose from an endosymbiotic relationship between a eukaryotic cell and an aerobic bacteria. Which statement supports this theory?
a. Fossilized mitochondria are older than the oldest fossilized eukaryotes.
b. Mitochondria can produce ATP outside of a eukaryotic cell.
c. A mitochondrion has its own DNA in the form of a single circular chromosome, like bacteria.
d. A mitochondrion has a only one outer membrane.
e. A mitochondrion can survive indefinitely when removed from a eukaryotic cell.
c
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What process occurs as individual water molecules move fast enough to rise into the air as water vapor?
A) condensation B) combustion C) evaporation D) precipitation
Most Gram-negative bacterial cells exhibit which of the following characteristics?
A) Thick layer of peptidoglycan without teichoic acids and large periplasmic space B) Thick layer of peptidoglycan with teichoic acids and small periplasmic space C) Thin layer of peptidoglycan without teichoic acids, large periplasmic space, and outer membrane
Which of the following applies to cyanobacteria
A. Fix carbon dioxide as C source B. Uses inorganics as electron donor C. Use light as energy source D. All of these apply to cyanobacteria
The most precise method of obtaining estimates of the absolute ages of geological deposits is
A. measure the ratios of various radioactive isotopes in the deposits. B. measure rates of sedimentary rock formation. C. make salinity measurements in ocean sediment deposits. D. study the sequence of fossil types in the deposits. E. apply the principle of superposition (younger deposits above older deposits).