Communities evolve to have greater biomass and species richness in a process called
A. sympatric interactions.
B. adaptive modifications.
C. succession.
D. symbiotic relationships.
E. competitive exclusion.
C. succession.
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____ is the study of body plans and structures among groups of organisms
a. Embryology b. Molecular archeology c. Evolution d. Comparative morphology e. Composition
Evidence for the evolution of antibiotic resistance in bacteria has been evaluated ________
A) in populations of bacteria within individual patients B) in studies comparing newly diagnosed patients v. patients who have relapsed after antibiotic treatment C) in studies comparing the fraction of patients with resistant bacteria and society-wide use of antibiotics D) in all of the above examples E) in no empirical studies; there is no evidence that antibiotics act as a selective agent
________ cells provide for a rapid secondary immune response.
A) Memory B) Effector C) Cytotoxic T cells D) Mast E) Dendritic
Triclosan, a chemical in most "antibacterial" soaps,
A) is considered to be the "miracle antiseptic" in household use. B) has led increased resistance of microbes to other antibacterial agents. C) is superior to regular soap and water. D) kills fungi and viruses as well as bacteria.