Ch 18 Classification Review

How many species have biologists identified and named so far?

• 1 million

• 1.5 million

• 2 million

• 2.5 million

What is the purpose of using a classification system in biology?

• To confuse students

• To name organisms and group them logically

• To eliminate species

• To create new species

What is the science of naming and classifying organisms called?

• Biology

• Ecology

• Taxonomy

• Anatomy

Which languages were used by scientists in the eighteenth century for scientific naming?

• English and French

• Latin and Greek

• Spanish and Italian

• German and Dutch

Who developed the binomial nomenclature system?

• Charles Darwin

• Carolus Linnaeus

• Gregor Mendel

• Louis Pasteur

How is the scientific name written in binomial nomenclature?

• Both words are capitalized

• Both words are lowercase

• First word capitalized, second word lowercase

• First word lowercase, second word capitalized

What tool can be used to identify an organism's scientific name based on its physical characteristics?

• Periodic table

• Dichotomous key

• Punnett square

• Venn diagram

How many levels are there in Linnaeus's system of classification?

• Five

• Six

• Seven

• Eight

Which of the following is the correct order of classification levels from smallest to largest?

• Kingdom, phylum, class, order, family, genus, species

• Species, genus, family, order, class, phylum, kingdom

• Genus, species, family, order, class, phylum, kingdom

• Family, genus, species, order, class, phylum, kingdom

What does the species category refer to in Linnaeus's classification system?

• A group of similar families

• A single type of organisms that can interbreed

• A collection of different classes

• A large group of orders