12. The outer, protective layer of a leaf is called the ____

answer check?? 1) What two tissues are found within a vein? Xylem and Phloem. 2) What does the...

The xylem and phloem in the leaf are found in the _______ layer a. lower epidermis b. spongy messo...

The principal photosynthesis cells of a leaf are found in the ________. Upper epidermis and palisad...

The middle layer of skin that contains connective tissue and blood vessels is called the: (1 poin...

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