Examlex
What is clonal selection? How does it occur?
Mesophyll
Photosynthetic parenchyma of plants.
Sieve Tubes
A series of sieve tube elements placed end to end to form channels for nutrient transport in plants.
Vessel Members
Components of the xylem tissue in plants that help conduct water and minerals from the roots to the rest of the plant.
Companion Cells
Plant cells that aid in the transport and regulation of nutrients within the phloem.
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