Which phyla lacks a vascular system?
A. Arthrophyta
B. Pterophyta
C. Gnetophyta
D. Hepaticophyta
E. Ginkgophyta
Answer: D
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A culture performed on a vaginal specimen collected from a 60-year-old woman would likely grow primarily:
a. group B hemolytic streptococci. b. staphylococci and corynebacteria. c. Enterobacteriaceae, streptococci, staphy-lococci, lactobacilli, and anaerobes. d. G. vaginalis, Prevotella spp., Peptostrep-tococcus spp., and Mobiluncus spp.
The process of producing high-energy foods from inorganic compounds using sunlight energy is called:
a. heterotrophy. b. chemosynthesis. c. photosynthesis. d. grazing. e. solar irradiation.
Alkylating agents work to prevent the cell from replicating its genetic material, thus preventing cell division. At which checkpoint would the cell most likely stop?
A. M checkpoint B. S checkpoint C. G1Â checkpoint D. G2Â checkpoint
Parental care in dinosaurs, crocodiles, and birds is an example of
A. homology caused by common descent. B. homoplasy caused by evolutionary reversal. C. homoplasy caused by convergence. D. homology caused by convergence. E. homoplasy caused by common descent.