Which category includes the cyanobacteria?
a. chemoautotrophs
b. photoheterotrophs
c. photoautotrophs
d. chemoheterotrophs
Ans: c. photoautotrophs
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Which of the following would NOT be a characteristic of the first life forms on Earth, that is, the very first primitive cells?
A. Oxygen was required for the cells to survive. B. A molecule evolved as a way to store genetic information. C. A barrier made of organic molecules separated the "cell" from the environment. D. Chemical reactions evolved as a way for cells to capture energy from the environment.
The net gain of ATP per molecule of glucose metabolized to pyruvate using Entner-Doudoroff pathway is
A. 2. B. 4. C. 1. D. 0.
A 59-year-old patient with cancer who was receiving high doses of chemotherapy developed a secondary lung infection that was identified as a fungus. The organism disseminated, which ul-timately was fatal to the patient. The organism isolated from sputum exhibited septate hyphae that were dichotomous. The organism is most likely which of the following?
a. Candida b. Cryptococcus c. Aspergillus d. Zygomycetes
Which one of the following terms applies to the phylum Platyhelminthes?
A. radial cleavage B. protostome C. diploblastic D. acoelomate E. radial symmetry