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Protists and Prokaryotes

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