Question

what is binomial nomenclature?
a two word system for naming organisms by using the genus and species
a two word system for naming organisms by using the family and genus
a two word system for naming organisms by using the order and family
a two word system for naming organisms by using the domain and species

Explanation:

Binomial nomenclature is a scientific naming system for organisms. It uses a two - part name: the first part is the genus name and the second part is the species name. So we need to find the option that mentions using genus and species for naming organisms.

• Option 1: Says it's a two - word system for naming organisms using genus and species. This matches the definition of binomial nomenclature.
• Option 2: Mentions using family and genus, which is incorrect as binomial nomenclature uses genus and species, not family and genus.
• Option 3: Mentions using order and family, which is not related to binomial nomenclature.
• Option 4: Mentions using domain and species, which is incorrect as binomial nomenclature uses genus and species, not domain and species.

Answer:

a two word system for naming organisms by using the genus and species