euglena

Photosynthetic pond dweller

Euglena is a single-celled freshwater organism that defies easy classification—it photosynthesizes like a plant but moves and feeds like an animal.

Under a microscope, euglena are elongated green cells that propel themselves with a whip-like flagellum.

They're a staple of high school biology labs, demonstrating that the line between plant and animal isn't always clear.

protist

flagellate

To whip or scourge

  • protistUnicellular eukaryotic organism
  • amoebaShape-shifting single-celled organism
  • parameciumCiliated slipper-shaped protozoan

ciliate · protozoan · microscopic · unicellular · eukaryote · microorganism · organism · bioindicator · microfauna · protozoology

locomotion

flagellum

Whiplike cellular appendage

movement · crawling · flexibility · pellicle · contraction · gliding

photosynthesis

chloroplast

Light-harvesting cell structure

carotenoids · sunlight · oxygen · glucose · green · ATP · photosynthetic · plastid

aquatic

pond

Small still body

  • freshwaterNon-saline aquatic environment
  • lakeEnclosed body of freshwater
  • puddleShallow collected rainwater

stream · ditch · stagnant · wetland · brackish · plankton · bloom · eutrophication · waterborne · habitat

microscopy

microscope

Instrument for viewing minute objects

observation · laboratory · staining · motility · sample · identification · research · preparation

Categories
Opposites
taxonomic clarity

euglenamammal

Warm-blooded, milk-producing animal

flowering plant · vertebrate · tree · human · angiosperm

cellular complexity

euglenawhale

Huge sea mammal

elephant · blue whale · human · giant squid · sequoia

metabolic flexibility

euglenaplant

Botanical organism

animal

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G