Futuyma and colleagues (1995 ) used the herbivorous leaf beetles of the genus Ophraella to study constraints in genetic diversity
Ophraella beetles feed and lay eggs on only certain members of the sunflower family because the beetles are unable to ________. A) penetrate the epidermal layer to lay eggs on nonhost plants
B) detect and detoxify chemical defenses produced by nonhost plants
C) digest the leaves of nonhost plants
D) break down the chemical defenses produced by nonhost plants in response to predation by the beetles
B
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The cells within a biofilm can undergo intra-species signaling; however, inter-species signaling does not occur
Indicate whether the statement is true or false.
The development of glomerulonephritis is a problem that may be encountered by patients infected with:
a. E. faecalis. b. S. pneumoniae. c. S. pyogenes. d. S. agalactiae.
Organisms belonging to the genus Brucella are:
a. gram-positive diplococci. b. gram-positive diphtheroid bacilli. c. gram-negative coccobacilli. d. gram-negative bacilli.
In performing a bacterial spore staining techniques, the decolorization reagent is
A. a mixture of different alcohols B. a mixture of acetone and alcohol C. a mixture of acid and alcohol D. a mixture of acetone and ether E. none of the above