Complete the following text with the suitable words from the box.

    Shrubs are perennial woody plants that grow several or many stems. They are usually fairly low to the ground and can (1) ____ about 20 feet tall. In some woody plant species, the outcome can be either a shrub or a tree, depending on the (2) ____. A dominant stem or (3)____ may form in place of multiple stems. The specimen will usually grow taller than the average shrub. Both deciduous and (4) ____ shrubs are common.

    Ornamental shrubs include (5) ____ and hydrangea. Cofee and and tea are (6) ____ important shrubs.  Hedges, used for centuries as green (7) ____ around yards and fields, are shrubs too. 

    Shrubs develop a (8) ____ of secondary vascular tissue. This secondary tissue includes extra xylem, the tissue that transport water and mineral (9) _____ by the roots, as well as extra phloem, the tissue that transport the food (10) ____  by photosynthesis.

(Adopted from: National Geographic, Answer Book 10,001 Fast Fact about Our World, Washington DC, National Geographic, 2015.)