During the 1960s and 1970s, ecologists emphasized competition as the primary factor structuring communities
Indicate whether the statement is true or false.
ANSWER: True
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Microorganisms are used in which of the following industries?
A) antibiotic B) chemical C) food, beer, and wine D) all of the above
When fungal buds remain attached in a row following cell division, the resulting chains of yeast cells are called ________.
A. septa B. dimorphic C. pseudohyphae D. mycelia E. molds
Magnification is achieved in a compound microscope through the initial magnification of the specimen by the ________ lens. This image is then projected to the ________ lens that will further magnify the specimen to form a virtual image received by the eye.
A. ocular; objective B. objective; ocular C. scanning; objective D. ocular; oil immersion
Which of the following is not a proposed explanation for the development of autoimmunity?
A) Certain pathogens may release superantigens that inappropriately activate certain T cells against self-factors. B) Certain antigens in a person's diet could trigger the production of antibodies that cross-react with host tissues. C) Cytopathic effects generated by a pathogen could encourage host antigen-presenting cells to process and present self-antigens to T cells. D) Genetics E) If a pathogen has antigens that resemble host factors, it could trigger the production of antibodies that cross-react with host tissues.