To which finger is more pain caused when the pencil is held by two fingers

Which of the following is an example of a non-falsifiable hypothesis? a. there is a teacup orbiting the milky way galaxy. b. there is no life on mars. c. the human species started in africa. d. humans cannot live without the amino acid methionine

Name the type of chemical that speeds up digestion

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure