At least 60% of the ____ most valuable fish species are overfished or fished to the limit
a. 30.
b. 100.
c. 150.
d. 200.
e. 400
D
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Which of the following is true regarding conjugation?
A. The bacteria must be in physical contact B. Most bacterial species have the ability to conjugate C. Strains called donor strains can transfer genetic information D. Donor strains can convert non-donor strains into donor strains E. All of the answers are correct
Growth of most Haemophilus species in culture is enhanced by:
a. incubation at 33°C to 35°C. b. high humidity. c. 5% to 10% carbon dioxide (CO2). d. enriched special media.
Why do immunizations require two doses?
a. The first dose stimulates the effector cells only, and the second dose stimulates the memory cells only. b. The first dose stimulates the primary immune response, and the second dose stimulates the secondary immune response. c. In case the first dose isn't enough to induce immunity, a second dose is given. d. The first dose often is ineffective. e. The first dose stimulates the innate immune response, and the second dose stimulates the adaptive immune response
Biologic evolution is a scientific theory, which means it is just an educated guess with no evidence to support it.
a. true b. false