What are basics of fungi​

Explanation:

Fungi are heterotrophs and, like animals, obtain their carbon and energy from other organisms.

Fungi are a kingdom of mostly microscopic organisms that are closely related to animals. They include spore-producing organisms such as mushrooms, yeast, and molds. Fungi are almost always invisible to the naked eye. Fungi are made up of masses of tubular filaments called hyphae that penetrate and absorb nutrients from the substrates on which fungi grow. Some fungi have extensive networks of hyphae that enable the fruiting body of the fungi to grow very large, such as many species of the shelf, or bracket, fungi

Explanation:

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a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.