Are these interesting statements about the human body true? Come take this quiz!

Are you ready? Let's go!

• The range of the visible spectrum that humans can actually see is wide.

  • FALSE

  • TRUE

• Humans can survive when most of their internal organs are removed.

  • FALSE

  • TRUE

• Laughter is contagious.

  • FALSE

  • TRUE

• Oxygen must be 100% pure for human consumption.

  • FALSE

  • TRUE

• Some people are more prone to accidents than others.

  • FALSE

  • TRUE

• Hair helps us hear.

  • FALSE

  • TRUE

• The IQs of firstborns tend to be higher than those of their younger siblings.

  • FALSE

  • TRUE

• Humans use electricity when they think.

  • FALSE

  • TRUE

• Calorie requirements are higher for youngsters than for adults.

  • FALSE

  • TRUE

• There is a common ancestor for all persons with blue eyes.

  • FALSE

  • TRUE

10 questions remaining