Viruses that attack bacteria are called
A. phages
B. proviruses
C. virulent
D. lytic
A. phages
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Which public health measure(s) is/are MOST effective against pathogens transmitted through common vehicles?
A) water purification B) mosquito control C) food safety regulations D) water purification and food safety regulations
What is the path of fluid as it is filtered from the blood and flows through the nephron?
A. Bowman's capsule ? proximal convoluted tubule ? loop of Henle ? distal convoluted tubule ? collecting duct B. collecting duct ? Bowman's capsule ? proximal convoluted tubule ? loop of Henle ? distal convoluted tubule C. Bowman's capsule ? loop of Henle ? proximal convoluted tubule ? distal convoluted tubule ? collecting duct D. Bowman's capsule? distal convoluted tubule ? loop of Henle ? proximal convoluted tubule ? collecting duct E. collecting duct ? distal convoluted tubule ? loop of Henle ? proximal convoluted tubule ? Bowman's capsule
The lancelet pharynx functions in _____
a. respiration c. reproduction b. filter-feeding d. both respiration and filter-feeding
The extraordinary accuracy of the DNA polymerase III enzyme lies in its ability to "proofread" newly synthesized DNA, a function of the enzyme's __________
A) 3?-to-5? exonuclease activity B) 5?-to-3? exonuclease activity C) 3?-to-5? polymerase activity D) 5?-to-3? polymerase activity E) 3?-to-5? helicase activity