Describe the role of DNA helicase, DNA polymerase, and DNA ligase

It has been said that veterinarians are the world's best doctors, since their patients cannot tell them what is wrong. what are some of the differences between human and animal medicine? what are the advantages and disadvantages of each?

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Which statement best describes a typical difference that could be found between the “analysis” and “conclusion” sections of a lab report?