Q:

What two organisms make up lichens?

A:

Lichens are symbiotic creatures that are comprised of both fungi and algae. Typically, a lichen is comprised of a fungal filament with green algae living inside of the filament. Cyanobacteria may also reside inside of the fungal filament to complete the lichen.

In many cases, these two separate organisms that make up a lichen can live alone, but often, they choose to live together symbiotically in order to protect each other and draw nutrients from each other. Sometimes, however, the fungal component cannot survive independently. Lichens come in many varieties, with a lichen's appearance being dependent on the composition of both of its unique organisms.

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Related Questions

  • Q:

    What are some examples of fungi?

    A:

    Notable fungi include yeast, also known as saccharomyces, penicillium chrysogenum, aspergillus oryzae and fusarium venenatum. Various fungi are used in foods and medicines, in contrast to fungi that serve as pests.

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  • Q:

    What are the characteristics of fungi?

    A:

    Fungi are eukaryotes. They reproduce by means of spores, and they reproduce both sexually and asexually. They are nonvascular, and they are heterotrophic. Fungi store their food as starch. They have a small nucleus. They digest their food before they ingest it. They are nonmotile. They have cell walls composed of chitin.

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    What are the advantages of fungi?

    A:

    Fungi play an essential role in ecosystems. They are responsible for the decomposition of organic matter; removing and recycling the organic matter on the ground, thus providing nutrients and food for plants, according to the Rainforest Conservation Fund. Additionally, fungi are responsible for nitrogen fixation within the soil.

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  • Q:

    Which of the following is not a characteristic of fungi?

    A:

    Photosynthesis is not a characteristic of fungi. Most green plants use photosynthesis to obtain their food, but fungi get their food from living, or formerly living, material.

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