In a melting profile for DNA, the absorbance at 260 nm increases as result of the disruption of the DNA structure. What is the fundamental physical basis for the absorbance increase

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

This group of organisms perform the process of ammonifcation. a. herbivores b. decomposers c. carnivores c. plants

In which state was more than 100 billion tons of coal mined in 2005?