Examlex
Suppose the marginal cost curve in the short run first decreases and then increases.If marginal cost is increasing,_____ must be _____.
Companion Cells
Specialized cells in the phloem of plants that are closely associated with sieve tube elements and assist with the transport of photosynthetic products.
Pressure Flow Theory
A hypothesis explaining how sugars are moved from the leaves where they're produced to other parts of the plant through phloem.
Parenchyma
In plants, simple tissue composed of living, thin-walled cells; has various specialized functions such as photosynthesis.
Xylem
The vascular tissue in plants that conducts water and dissolved nutrients upwards from the root and also helps to form the woody element in the stem.
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