DNA fragments move across the gel in electrophoresis at varying distances. What causes the variation

Which of the following statements best describes the relationship between the environment and human health? a. the environment is the only factor that affects human health. b. many aspects of the environment can have an impact on human health. c. human health is impacted by changes in climate. d. the environment has no impact on human health. select the best answer from the choices provided

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Which units ate used to measure both velocity and speed? check all that apply