Symbiotic association between a fungus and the roots of a plant. the fungus receives energy-rich sugar molecules produced by the plant while passing minerals and nutrients from the soil to the root; send the plant water, minerals, and nutrients (especially phosphorus containing compounds). in exchange, the fungus absorbs some of the sugars the plant produces.

A Mycorrhiza is a symbiotic relationship between fungus and a plant

Explanation:

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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.