Receptors on nerves work by opening ion channels (sensors) in the wall of the nerve.

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

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Explain what role the narrator believes he is playing in telling the story. describe how this belief will affect the story. your answer should be at least 250 words.