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Linnaeus's Classes and Taxonomy

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Questions and Answers

Who first introduced the class as a distinct rank of biological classification?

Charles Darwin

Joseph Pitton de Tournefort (correct)

Carl Linnaeus

Gregor Mendel

Which taxonomic rank is class placed between?

Phylum and order (correct)

Genus and species

Family and genus

Order and family

What is the historical conception of a class in biological classification?

Arranging based on metabolic processes

Grouping based on geographical distribution

Embracing taxa combining a distinct grade of organization and a distinct type of construction (correct)

Categorizing based on reproductive strategies

In which publication did Carl Linnaeus first divide all three of his kingdoms of Nature into classes?

Systema Naturae (1735) Signup and view all the answers

How is the composition of each class ultimately determined?

By the subjective judgment of taxonomists Signup and view all the answers

What is the rank immediately above class in biological classification?

Phylum Signup and view all the answers

What were Linnaeus's classes and orders of plants intended to represent?

Artificial keys based on flower arrangement Signup and view all the answers

What is the main reason why classes are now rarely discussed in botany?

They have been replaced by informal clades Signup and view all the answers

What was considered the highest level of the taxonomic hierarchy until George Cuvier's embranchements were introduced?

Classes Signup and view all the answers

What is the significance of George Cuvier's embranchements in the taxonomic hierarchy?

Introduced a higher level than classes Signup and view all the answers

What has been the approach to formal ranks in modern taxonomy?

Reduced formal ranks to a lower level Signup and view all the answers

What has been the preferred treatment of ranks higher than orders in modern taxonomy?

Treated as informal clades Signup and view all the answers