Why do frequent mutations to hypervariable region of DNA not cause harm to humans?​

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

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast