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Protists and Prokaryotes

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Across
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Organisms that play an essential role in recycling minerals, decay, and decomposition
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Single-celled protists that live in aquatic habitats and animal bodies; common ancestor of fungi and animals
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Archaea that can live in extremely hot environments
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A eukaryote that is not a plant, animal, or fungus
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An 03 layer around the Earth that shields it from UV rays
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A result of cyanobacteria releasing O2 into the atmosphere
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Single-celled heterotrophs that use cilia to move and feed
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Archaea that live in the guts of cows
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Archaea that live in extremely salty environments
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Fossils of early life (prokaryotic cells) that formed in shallow seas
Down
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Single-celled protists with calcium carbonate cells
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Most recently discovered and most unknown prokaryote domain
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Protists that are heterotrophic decomposers
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The identification, naming, and classification of species
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Red algae
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Single-celled protist with cellulose plates and 2 flagellum
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A class of protists in which all known forms are parasitic
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Green algae, most closely related to land plants
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The evolutionary history of a species