Which of the following best describes the role of fungi in an ecosystem?
A. Decomposers
B. Autotrophs
C. Herbivores
D. Carnivores
E. Producers
A
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In some forms of breast cancer, estrogen is a(n)
A) initiator. B) promoter. C) progressor. D) inhibitor. E) mutagen.
When two organisms do not mate due to the fact that they mate at different times of the year, it is
known as ____.
a. behavioral isolation b. ecological isolation c. gametic isolation d. mechanical isolation e. temporal isolation
Which of the following can be diagnosed by examining a karyotype of an individual's white blood cells?
(A) Sickle cell anemia (B) Alzheimer disease (C) Down syndrome (D) Cystic fibrosis (E) Duchenne muscular dystrophy
Which of the following is not true of extended-spectrum beta-lactamases (ESBL) and gram negative bacilli?
A) Due to mutations in a bacteria's original chromosome B) Should be included in the susceptibility testing for all of Enterobacteriaceae C) Usually susceptible to carbapenems, cephamycins, and beta-lactamase inhibitors D) ESBLs destroy carboxypenicillins, ureidopenicillins, aztreonam, and cephalosporins