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

YeastSingle celled, eukaryotic (contains a nucleus)
Fruit flyMulticellular, eukaryotic, invertebrate, arthropod
ZebrafishMulticellular, eukaryotic, vertebrate, fish
MouseMulticellular, 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