Biology Classification Key Terms

Questions and Answers

What is Animalia?

A system for naming organisms.

A group of prokaryotic organisms.

The classification kingdom containing complex, multicellular organisms that lack cell walls. (correct)

A major taxonomic group of animals and plants.

What is Archaea?

One of two prokaryotic domains of life.

What are Archaebacteria?

Bacteria with a similar DNA makeup as eukaryotes but lack the peptidoglycan cell wall.

What is Bacteria?

A member of a large group of unicellular microorganisms lacking organelles and an organized nucleus. Signup and view all the answers

What is Binomial Nomenclature?

A classification system in which each species is assigned a two-part scientific name. Signup and view all the answers

Who is Carolus Linnaeus?

The founder of taxonomy, the branch of biology concerned with naming and classifying organisms. Signup and view all the answers

What is a clade?

A taxonomic grouping that includes only a single ancestor and all of its descendants. Signup and view all the answers

What is a cladogram?

A diagram that shows the evolutionary relationships among a group of organisms. Signup and view all the answers

What is a class in biological classification?

A group of similar orders. Signup and view all the answers

What is a derived character?

A trait that appears in recent parts of a lineage, but not in its older members. Signup and view all the answers

What is a domain in taxonomy?

A taxonomic category that includes one or more kingdoms. Signup and view all the answers

What are eubacteria?

A kingdom that contains all prokaryotes except archaebacteria. Signup and view all the answers

What is Eukarya?

Domain consisting of all organisms that have a nucleus. Signup and view all the answers

What is a family in biological classification?

A group of genera that share many characteristics. Signup and view all the answers

What are fungi?

A kingdom composed of heterotrophs. Signup and view all the answers

What is a genus?

A classification grouping that consists of a number of similar, closely related species. Signup and view all the answers

What is a kingdom in biological classification?

A taxonomic category of the highest rank, grouping together all forms of life having certain fundamental characteristics in common. Signup and view all the answers

What is an order in biological classification?

A group of closely related families. Signup and view all the answers

What is phylogeny?

The sequence of events involved in the evolutionary development of a species or taxonomic group of organisms. Signup and view all the answers

What is phylum in biological classification?

The major taxonomic group of animals and plants. Signup and view all the answers

What is Plantae?

A kingdom made up of complex, multicellular organisms that are usually green. Signup and view all the answers

What is Protista?

A kingdom of unicellular living organisms that are neither animals nor plants. Signup and view all the answers

What is systematics?

A scientific discipline focused on classifying organisms and determining their evolutionary relationships. Signup and view all the answers

What is a taxon?

The science of classification; in biology, the process of classifying organisms in categories. Signup and view all the answers

Study Notes

Classification Key Terms

Animalia: Kingdom of complex, multicellular organisms; lack cell walls; typically capable of movement; possess specialized sense organs for environmental response.
Archaea: One of two prokaryotic domains, alongside Bacteria; consist of microorganisms with distinct evolutionary traits.
Archaebacteria: Type of bacteria resembling eukaryotes in DNA structure but lacking peptidoglycan in cell walls.
Bacteria: Large group of unicellular organisms without organelles or organized nuclei; some members can cause diseases.
Binomial Nomenclature: Scientific naming system assigning each species a two-part name.
Carolus Linnaeus: 1707-1778; established taxonomy's foundation; developed the two-part naming system for organisms.
Clade: Taxonomic unit comprising an ancestor and all its descendants.
Cladogram: Diagram representing evolutionary relationships within a group of organisms.
Class: Grouping of similar orders in biological classification.
Derived Character: Traits that emerge in recent evolutionary lineage, absent in older members.
Domain: High-level taxonomic category encompassing one or more kingdoms (e.g., Bacteria, Archaea, Eukarya).
Eubacteria: Kingdom containing all prokaryotes except archaebacteria.
Eukarya: Domain of organisms having a nucleus; includes protists, plants, fungi, and animals.
Family: Classification group of genera sharing numerous characteristics.
Fungi: Kingdom of heterotrophs; many get nutrients from decomposing organic matter.
Genus: Classification grouping consisting of closely related species.
Kingdom: Highest taxonomic category grouping all life forms sharing specific common characteristics.
Order: Group of related families in biological classification.
Phylogeny: Sequence of events shaping the evolutionary development of a species or taxonomic group.
Phylum: Major taxonomic classification group for animals and plants.
Plantae: Kingdom of multicellular organisms; typically green, cell walls made of cellulose, unable to move, utilize photosynthesis.
Protista: Kingdom of unicellular organisms that are neither animals nor plants; includes algae, slime molds, and protozoa.
Systematics: Scientific discipline dedicated to classifying organisms and understanding their evolutionary relationships.
Taxon: Fundamental classification unit in biology for categorizing organisms.

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Description

This quiz focuses on key terms related to biological classification, including kingdoms such as Animalia and domains like Archaea. Test your understanding of these important concepts and terms that define the diversity of life. Perfect for biology students and enthusiasts!