Question

which level of biological classification is the lowest level that butterflies (invertebrates) and dogs (vertebrates) have in common?
○ domain
○ kingdom
○ species
○ family

Explanation:

1. Recall biological classification levels: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
2. Butterflies (invertebrates, arthropods) and dogs (vertebrates, mammals) are both animals, so they share the kingdom (Animalia). Domain (Eukarya) is higher, species and family are too specific (butterflies and dogs differ at phylum, class, etc., so family/species not shared; kingdom is lower than domain and shared).

Answer:

B. kingdom