Bioindicators

noun a member of the kingdom Protista, comprising single-celled eukaryotic organisms

adjective relating to or characteristic of protists

• Protists are a diverse group of eukaryotic microorganisms that are not plants, animals, or fungi.
• Did you know that protists are single-celled organisms that can be found in various environments?
• Protists are like the cool kids of the microscopic world.
• Just like protists, sometimes we may feel like we are small and overlooked in a big world.

noun a type of organic microfossil found in rocks dating from the Precambrian era

• The presence of acritarchs in the sedimentary rock indicates a marine environment during the time of deposition.
• I found some weird acritarch fossils while digging in my backyard.
• Those acritarchs look like tiny alien eggs!
• The acritarchs scattered throughout the painting added a mysterious and ancient feel to the artwork.