How does the level of genetic variation in humans typically compare to other species?
A. higher than other species
B. lower than other species
C. about the same as other species
D. not sure because we have been unable to
accurately measure genetic variation in
humans and other species
B
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Which of the following are used by cyanobacteria for reproduction?
A. Budding B. Binary fission C. Fragmentation D. All of the choices are correct.
Which of the following is NOT a terpene?
A. the insect repellent citronella B. the anti-cancer agent taxol C. rubber D. polyvinyl E. terpentine
Once a pathogen has infected the host, ________ is a measure of the pathogen's ability to spread to adjacent or other tissues.
Fill in the blank(s) with the appropriate word(s).
Members of the ____ phylum have bilaterally symmetrical larvae, but exhibit secondary radial symmetry as adults,
usually organized around five rays, or "arms."
a. Hemichordata b. Echinodermata c. Cnidaria d. Arthropoda e. Chordata