The taxonomic category that includes species of apes, humans, and their ancestors is the ___________
A. hominids D. hominanies
B. hominins E. homanities
C. hominoids
A
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Most seeds are dormant until
a. conditions are favorable. b. drastic conditions are present. c. the timing is right. d. conditions are favorable and the timing is right
Budding is most common among which of the following?
a. corals b. birds c. lizards d. fish
Answer the following statements true (T) or false (F)
1. Streptomyces are aerobic soil bacteria that produce over two-thirds of our antibiotics of natural origin. These antibiotics should also be effective in killing Streptomyces. 2. Streptomyces are obligate aerobic soil bacteria that infect many plant roots, causing scabs on their leaves. You would expect to find more Streptomyces near the surface of the soil. 3. Antibiotics usually are not dangerous to use in treating bacterial infections because most antibiotics exploit structures and functions in bacteria that are not present in host cells. 4. Pili are bacterial structures used primarily for motility. 5. Autotrophs must acquire carbon from organic molecules produced from other organisms.
UV water treatment systems are effective in treating ________.
A. protozoans B. bacteria C. viruses D. All of these choices are correct.