True or False Quiz || Horses and sleep
True or False Quiz Crows and faces
True or False Quiz || Birds and backward flying
True or False Quiz || Octopuses' hearts
True or FalseQuiz || Plankton and oxygen
True or False Quiz || Animals and magnetic field
True or False Quiz Sunlight
True or False Quiz The human body
True or False Quiz Brains
True or False Quiz The distance between the sun and Earth.
True or false Quiz Stars in the Milky Way
True or false Quiz Neurons
True or false Saliva
True or False Quiz The speed of light
The smallest mammal
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