Smokers who have a heart attack are nearly four times as likely as nonsmokers to die from it.

a. true
b. false


Answer: a. true

Biology & Microbiology

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The second law of thermodynamics states that ____

a. the energy of the universe is a constant b. energy can be neither created nor destroyed c. energy disperses spontaneously d. energy transformations create a more orderly universe e. energy and matter are the same thing

Biology & Microbiology

Parvoviruses are among the simplest known DNA viruses of animals.

Answer the following statement true (T) or false (F)

Biology & Microbiology

During the spring calving season, a ranch hand begins to run a fever and feel nauseous and achy. After he develops a headache and vomiting, he goes to a clinic. A microscopic exam of a urine sample reveals long thin microbes which move very rapidly in a

corkscrewing pattern. The man may have contracted A) lymphogranuloma venereum. B) glomerulonephritis. C) leptospirosis. D) staphylococcal toxic shock syndrome. E) trichomoniasis.

Biology & Microbiology

No convincing fossil evidence exists for ____

a. evolution b. extinction c. Earth’s age d. catastrophism e. uniformitarianism

Biology & Microbiology