Answer:
True blue is a rare color in plants. There are some flowers with blue hues but foliage plants tend to be more gray or green than blue. Green- and gold-colored foliage plants are everywhere. This plant is considered the grandfather of all blue-leaved hostas, and its thick, rounded, corrugated blue leaves develop into a 4-foot-wide by 2-foot-tall clump.
The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.
<span>
the tissue in higher plants that constitutes the vascular system, consisting of phloem and xylem, by which water and nutrients are conducted throughout the plant.</span>
