which of the following is a scientific name?
Which of the following is not a characteristic of bacteria?
have the same shape
which of the following is the most important element of koch's germ theory of disease? The animal shows disease symptoms when
a microorganism is inoculated into the animal
Recombinant DNA is
the DNA resulting when genes of two different organisms are mixed
Which of the following statements is the best definition of biogenesis?
Living cells can only arise from preexisting cells
which of the following is a beneficial activity of microorganisms?
some are used as food for humans
some use carbon dioxide
some provide nitrogen for plant growth
some are used in sewage treatment processes
it has been said that bacteria are essential for existence of life on earth. Which of the following is the essential function performed by bacteria?
decompose organic material and recycle elements
which of the following is an example of bioremediation?
application of oil-degrading bacteria to an oil spill
Spallanzani's conclusion about spontaneous generation was challenged because lavoisier had just shown that oxygen was the vital component of air. Which of the following statements is true?
some microbes do not require air
which of the following statements about E.coli is false?
E.coli was the first disease-causing bacterium indentied by koch.