The shortest time interval in which a wave motion completely repeats itself (i.e., makes one complete. vibration or oscillation) is called the. a. amplitude d. frequency. b. period e. speed. c. wavelength. ____ 3.
A mycorrhiza (Greek: Î¼ÏÎºÏÏ, mykÃ³s, fungus, and ÏÎ¯Î¶Î±, riza, root, pl. mycorrhizae or mycorrhizas) is a symbiotic association between a fungus and the roots of a vascular host plant. The term mycorrhiza refers to the role of the fungi in the plants' rhizosphere, its root system. Mycorrhizae play important roles in soil biology and soil chemistry.
The second group of mycorrhizae is endomycorrhizae which are also known as vesicular-arbuscular mycorrhizae or VAM. Roughly, 80% of all the plants in the world form associations with endomycorrhizae, as does nearly every greenhouse plant.