About 1.5 million species of fungi exist on Earth. They act as nature’s decomposers, breaking down matter, releasing enzymes and acids that unlock nutrients for plants and soil organisms. You may be familiar with macrofungi, a type of fungus that includes mushrooms. But for the most part, fungi exist as mycelia, tiny threads that snake underground in billions of interconnected threads. They twist and twine with tree root systems, bringing them crucial nutrients. Mycologists call these networks of mycelia "Earth’s nervous system."
Which statement best identifies the central idea of the paragraph?
A.Fungi exist as a web of threads connected underground. B.The type of fungus called macrofungi includes mushrooms. C.The over a million different types of fungi surrounding us act as Earth's decomposers. D.Fungi bring nutrients to tree root systems when they twine with them underground.
Correct answer is option C. Explanation: The over a million different types of fungi surrounding us act as Earth's decomposers this statement best identifies the central idea of the paragraph.
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