Các vấn đề an toàn sinh học trong chuyển gen là gì

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

Explain why phospholipid molecules form a bilayer. (3 marks)

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic