Rheumatoid arthritis is caused by
a. a deficiency of antibodies.
b. inability to respond to antigenic stimulation.
c. a virus.
d. a self-attack on blood tissue.
e. a self-attack on joints.
E
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Transport of amphibians for sale has probably encouraged the spread of _____, fungi that infect amphibians
a. ascomycetes b. zygomycetes c. basidiomycetes d. chytrids
A common source of antibiotics is
A) Acetobacter. B) Aspergillus oryzae and Lactobacillus. C) Lactoccocus cremoris. D) Streptococcus thermophilus. E) Streptomyces.
What strategies are employed in habitat conservation? Select all that apply.
A. ecosystem replacement B. identifying areas rich in endemic species C. rehabilitation of previously damaged areas D. identifying representative habitats E. establishing a captive breeding program
Which of the following diseases is NOT caused by endospore-forming bacteria?
A. botulism B. lockjaw C. tetanus D. Strep throat E. anthrax