Where do glass frogs live?, Central and South America, Central and South Africa, Central and South Australia, When do glass frogs sleep?, During the day, During the night, They don’t sleep, Why do frogs appear more invisible while sleeping?, They burrow underground, They turn completely transparent, They hide most of their red blood cells in their liver, Why do we see colors?, Because light bounces off objects, B. Because objects produce their own colors, C. Because our eyes create color, Why are glass frogs translucent?, They reflect moonlight, They have mirror-like skin, Their undersides have very few pigments, Do glass frogs have more pigments on their back or tummies?, Back, Tummies, Both equally, How do glass frogs hide among leaves?, They change into leaf shapes, Their backs reflect colors that match the leaves, They hide underground during the day, Which is an example of another “invisible” animal?, horseshoe crabs, Comb jelly, sea horses

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