Model Organisms

Regarding the ethics in high school research, we can do no harm to vertebrates (anything with a backbone).  Invertebrates are allowed. This includes insects, worms, crustaceans and more.  Living Organisms 

Below are some of the common Model Organisms:

1. Escherichia coli (E. coli)
A common bacterium used in genetics and molecular biology. It reproduces quickly (about 20 minutes per generation), has a simple genome, and is easy to culture in a lab. Students can study bacterial growth, antibiotic resistance, or gene expression.  Escherichia coli, Living, Tube | Carolina Biological Supply

2. Saccharomyces cerevisiae (Baker’s Yeast)
A eukaryotic microorganism used to explore fermentation, cellular respiration, and genetics. It is easy to grow on sugar solutions and can be manipulated for simple genetic experiments EBSCO.

3. Drosophila melanogaster (Fruit Fly)
A classic genetics model with a short life cycle (about 10–14 days) and many visible traits. Students can study inheritance patterns, mutations, or effects of environmental changes.
Common Stock: Drosophila, Flightless | Carolina Biological Supply
Human Disease Model: Bloomington Drosophila Stock Center: Indiana

4. Caenorhabditis elegans (Roundworm)
A transparent nematode with a simple nervous system and short life cycle. It’s useful for studying development, aging, and genetics in a multicellular organism. Caenorhabditis elegans | Carolina Biological Supply

5. Arabidopsis thaliana (Thale Cress)
A small flowering plant with a short life cycle and a compact genome. It’s fast life cycle allows for many trials to be performed.  It’s ideal for plant genetics, growth .experiments, and environmental stress studies.   Thale Cress

6. Daphnia magna (Water Flea)
A small aquatic crustacean used to study environmental effects, toxicity, and population dynamics.  You can also observe it’s heartrate for those studying cardiac function.   EBSCO.

7. Planaria (flatworm)
Planarians are small and easy to maintain. They can regrow entire bodies from small fragments, making them perfect for studying stem cells (neoblasts) and totipotency.  This regeneration can be a model for those studying neurological functions. Why to Use Planaria.  Black Planaria | Carolina Biological Supply 

8. Hydra or Hydra vulgaris
A simple freshwater cnidarian with regenerative abilities. It’s great for studying cell differentiation, regeneration, and basic animal biology.  Hydra Research 

9. Ants
Ants combine genetic simplicity, phenotypic diversity, and complex social organization with ecological importance, making them versatile models for understanding social behavior, genetics, epigenetics, sensory biology, and ecology. Why Ants Are Model Insects

10. Armadillidium vulgare (Pillbugs)

Pillbugs are a versatile, low-cost, and safe model organism that can be used across educational levels to teach fundamental biological principles, experimental design, and ecological concepts.  Pillbugs: An interactive investigation into animal behaviors

11. Crustaceans

Crustaceans serve as versatile environmental models because of their ecological breadth, physiological adaptability, and sensitivity to environmental change. They bridge fundamental biology with applied environmental science, offering tools for monitoring ecosystem health, understanding adaptation, and predicting impacts of anthropogenic and climate-related stressors. Crustaceans as Good Marine Model Organism

Explore more ->  List of model organisms - Wikipedia