Examlex
One theory for the origin of life proposed that reproducing molecules may have arrived here from space.
Cuticle
A protective and waterproof outer layer of a plant or arthropod, composed of organic material and often preventing water loss.
Vascular Cambium
Vascular cambium is a layer of dividing cells in plants, located between the xylem and phloem, responsible for the secondary growth that increases the thickness of stems and roots.
Xylem
The vascular tissue in plants responsible for the conduction of water and minerals from the roots to the leaves and shoots.
Phloem
The vascular tissue in plants responsible for the transport of nutrients, especially sugars, produced by photosynthesis to various parts of the plant.
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