A significant amount of CH4 is trapped underground or under marine sediments as
a. natural gas.
b. liquid methane.
c. inorganic carbon.
d. methane hydrates.
Answer: D
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Ciprofloxacin is a widely used antibiotic. This molecule is used to target:
A. topoisomerases in cancer cells. B. topoisomerases in fungal cells. C. topoisomerases in bacterial cells. D. structural maintenance proteins (SMC) in bacterial cells. E. structural maintenance proteins (SMC) in eukaryotic cells.
Insects and other arthropods have a _____
1.Endoskeleton 2.Exoskeleton 3.Ectoskeleton 4.Hydrostatic skeleton 5.Proteinacious skeleton
Cilia and flagella are most similar in
a. length. b. the kinds of cells that have them. c. the number that cells usually have. d. their internal composition and structure. e. their location along the cell’s periphery.
Which drug, if it were legal, would you recommend for a patient who has little or no appetite, such as a person on chemotherapy?
A) cocaine B) opium C) amphetamines D) marijuana