Cyanobacteria and purple bacteria both obtain energy from light. However, only the ________ are capable of releasing ________
A) cyanobacteria / organic compounds
B) cyanobacteria / oxygen
C) purple bacteria / organic compounds
D) purple bacteria / oxygen
Answer: B
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When they ferment glucose, members of the genus Streptococcus produce lactic acid, but no gas.
Answer the following statement true (T) or false (F)
Increasing global population, overcrowding and international travel have contributed to many changes in epidemiological trends of infectious disease. Which of the following would have been just as likely to occur a century ago as today?
A. The incidence of bubonic plague in humans, transmitted via the rat flea, is gradually increasing in the United States with most of the cases reported in the west. B. Gonorrhea, one of the oldest known STDs, is becoming increasingly difficult to treat due to multi-drug resistance strains of Neisseria gonorrhea. C. An individual was placed under a government-ordered isolation after traveling while infected with a drug resistant strain of Mycobacterium tuberculosis. D. West Nile encephalitis, a zoonotic disease caused by a virus first isolated in Uganda, is now a world-wide pandemic in human and animals.
Which of these is part of the defense against parasites, such as tapeworms and hookworms, that have invaded the body?
A) neutrophils B) lymphocytes C) eosinophils D) monocytes
Discuss the importance of serial endosymbiosis, both primary and secondary, in the protists. What will be an ideal response?