There was a massive immigration of Irish to the United States in the mid-19th century because of a failure of the Irish potato crop caused by:
A. Trichomonas vaginalis
B. Plasmodiuim falciparum
C. Phytophora infestans
D. Giardia lamblia
E. Spudsik emeraldensis
C. Phytophora infestans
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If a cell is dividing by binary fission then you know that:a
mitosis has taken place without cytokinesis. b. homologous chromosomes have already paired. c. the cyclin-Cdk complex is no longer phosphorylating enzymes. d. the cell cycle is out of control. e. the cell is prokaryotic
Hemophilia A is an X-linked recessive disorder. If a normal man marries a woman who is a carrier, what fraction of their daughters will have hemophilia? Select one:
a. 25% b. 50% c. 75% d. 0% e. 100%
Viral meningitis normally requires aggressive antiviral treatment.
Answer the following statement true (T) or false (F)
Which of the following statements concerning the biochemical oxygen demand (BOD) is CORRECT?
A. It is a measure of the amount of oxygen in water. B. It is proportional to how potable water is. C. It is used as a bioreceptor index. D. It is a measurement of the amount of oxygen that aerobic bacteria require to decompose organic wastes in water. E. It is a filter system to purify drinking water.