Challenge the brain with this biological evolution and diversity scrambled letters puzzle. The word list is not included which engages problem solving skills, working memory and critical thinking skills. To solve the puzzle rearrange the letters to reveal the correct spelling. Next, record the correct spelling on the blank link to the right of the scrambled letters. The may be more than one word to unscramble in the collection of letters. Puzzle is available as both downloadable printable and as Google App™.
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