Most fungi are heterotrophic and absorb soluble organic matter from dead substrates and hence are called saprophytes. Those that depend on living plants and animals are called parasites. They can also live as symbionts – in association with algae as lichens and with roots of higher plants as mycorrhiza.
Assertion (A): All fungi are saprophytes that absorb organic matter from dead substrates. Reason (R): Fungi constitute a unique kingdom of heterotrophic organisms.
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