Plants do die of course

Suppose a gardener uprooted some carrots after one season and sees they are too small. Carrots are biennials, and so the gardener leaves the remaining plants in the ground, thinking their roots will grow larger during their second year.  Is this a good idea?  Thoughts.

If you like you can view this video for more information.

Leaf Anatomy

If a plant species has vertically oriented leaves, would you expect its mesophyll to be divided into spongy and palisade layers?  Thoughts