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The mesophyll has two layers. The outermost layer is the palisade layer that is made of tightly packed chloroplasts, and the innermost layer is the "spongy layer" that has air between its cells.
This layer with column like cells in the leaf is palisade layer. It is clearly seen in dorsiventral leaves.
Yes
Packing palisade cells tightly together means that the maximum amount of light can be intercepted. If there are big gaps between the cells then more of the light hitting the leaf will just pass straight through.
In the case of bodies with substantial atmospheres, such as Earth's atmosphere, the exosphere is the uppermost layer, where the atmosphere thins out and merges with interplanetary space. It is located directly above the thermosphere.
The uppermost layer of skin is the the stratum corneum.
squamouslike
The layer is called the palisade layer
Palisade cells are the column like cells that lie just under the epidermis. Palisade layer is one layer of the mesophyll.
Palisade cells are the column like cells that lie just under the epidermis. Palisade layer is one layer of the mesophyll.
"Palisade Mesophyll" Layer
spongy layer
blipe
It is called 'topsoil'
It is called the epidermis
exosphere
The upper mantle is called the asthenosphere.