The scientist who introduced binomial nomenclature in the classification of organisms was

Step 1: Analyze the question The question asks who introduced binomial nomenclature, the system of giving each organism a two-part scientific name.

Step 2: Explain the concept Binomial nomenclature names every species with two Latin words:

• The first is the genus (capitalized).
• The second is the species (lowercase).

Examples: Homo sapiens (humans), Zea mays (maize), Mangifera indica (mango).

Step 3: Evaluate the options

• A. Charles Darwin: He proposed the theory of evolution by natural selection, not a naming system.
• B. Carolus Linnaeus: This Swedish botanist consistently used binomial nomenclature in his works, especially Species Plantarum (1753). He is known as the "Father of Taxonomy."
• C. John Ray: He was an English naturalist who developed the concept of the species and made early contributions to classification, but he did not introduce the two-name system.
• D. Louis Pasteur: He is known for work in microbiology, pasteurization, and vaccines.

Step 4: Answer The correct answer is **B.

Tip: Link Linnaeus with Label: he gave every organism a two-part "label." Also remember that Darwin = evolution, Pasteur = germs and pasteurization, Ray = species concept.