Frederic Griffith used the word transformation to describe the changes in bacteria that he observed. Which is the most useful definition of transformation? A. a permanent change in gene expression

B. a temporary change in the genetic composition of an organism

C. a permanent change in the genetic composition of an organism

Nucleic acid certain protein cell membranes certain carbohydrates

Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.