Here's why:
* Internal rhyme occurs within a single line of poetry. It doesn't necessarily require a specific rhyme scheme across multiple lines.
* Rhyme scheme refers to the pattern of rhyming words at the ends of lines in a poem.
Example:
"The cat sat on the mat, and the dog ran to the bog."
This line has internal rhyme (cat/mat, dog/bog) but does not follow a specific rhyme scheme.
Internal rhyme can exist independently of rhyme scheme.