In angiosperms, xylem consists of tracheids and
a) sieve tubes
b) companion cells
c) vessel elements
d) parenchyma

hi there

your answer to this is :   C) vessel elements

EXPLATION:

The most distinctive xylem cells are the long treachery elements that transport water. Tracheids and vessel elements are distinguished by their shape; vessel elements are shorter, and are connected together into long tubes that are called vessels. Xylem also contains two other cell types: parenchyma and fibers.

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FaithRawlins14

oxygen +1 most likely

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.