You wish to study the impact of synthetic estrogen like hormones on the health of whales (and people). Select the organism from the table below that would be best to use in your research. Why did you select this organism?

Model Organism

Characteristics Yeast Single celled, eukaryotic (contains a nucleus)

Fruit fly Multicellular, eukaryotic, invertebrate, arthropod

Zebrafish Multicellular, eukaryotic, vertebrate, fish

Mouse Multicellular, eukaryotic, vertebrate, mammal



Fruit flies, because they are multicellular like whales

Mouse, because they are mammals like whales

Yeast, because they are eukaryotic like whales

Zebrafish, because they live in the water like whales