Did Carolus Linnaeus classify only animals in his systems?

Correct answer: No, he classified both plants and animals

Correct answer: A. Carolus Linnaeus worked on the classification of both plants and animals. His publications included Species Plantarum, associated with the classification and naming of plants, and Systema Naturae, which presented a system covering organisms including animals. He is especially remembered for establishing and popularising binomial nomenclature, in which each organism receives a genus name and a specific epithet. B is wrong because his work was not restricted to animals. C is wrong because his classification was not limited to microorganisms. D is wrong because classification and nomenclature were central parts of his contribution to biology. The question asks whether he classified only animals, so the key contrast is plants plus animals. Memory cue: Linnaeus = binomial names and classification of both kingdoms of plants and animals, not animals alone.