Question

Give evidence that leaves are external structures

Answer 1

They are external structures because their veins are on the outside.

Step-by-step explanation:

you can see the Leaf's vains because it's an external structure. if you can't see the Leaf's vains it means its internal

Answer 2

Woody plants have a tough, waterproof outer layer of cork cells commonly known as bark, They provide structural support, mainly to the stem and leaves.