Question

the spots on the posterior surface of the leaflets of ferns are​

Answer 1

The tiny spots found on the underneath surface of the fern leaves are known as stomata.

The tiny dot on the fern leaves might resemble like the spotted foliar disease or insect infection.

On closer inspection, you can able to view that these structures are lined up in an orderly manner.

These flowerless plants make use of these structures to withstand reproductive material.

Explanation:

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Answer 2

Answer:

The spots on the posterior surface of the leaflets of ferns are stomata.