The layers above would be not as old and the layers below would be the older layers.
Answer:
Chloroplasts are endosymbiotic descendants of photosynthetic cyanobacteria-like prokaryotes that were incorporated into cells more than a billion years ago.
Explanation:
Photosynthesis converts electrochemical energy from light into sugars and acts as the carbon source of the cell.
Answer:
The tissues of a leaf needs to have the ability to resist changes in their natural environment so that they can survive
