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Biology Chapter 18 Vocab
For 9th grade biology, these are the toughest words in Chapter 18
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Biology
9th Grade
02/07/2023

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Term
Taxonomy
Definition
a branching classification of all organisms based on shared characteristics that changes are new discoveries are made
Term
Binomial Nomenclature
Definition
each species is assigned to a two-part scientific name
Term
Genus
Definition
a group of similar species
Term
Species
Definition
a group of individuals able to interbreed and produce fertile offspring
Term
Taxon
Definition
a singular group of living things that have biological meaning
Term
Family
Definition
a group of similar genera
Term
Order
Definition
a group of similar families
Term
Class
Definition
a group of similar orders
Term
Phylum
Definition
a group of similar classes
Term
Kingdom
Definition
the largest and most inclusive of Linnaeus's taxonomic categories
Term
Phylogeny
Definition
the evolutionary history of lineages
Term
Clades
Definition
a group of species that includes a single common ancestor and all living things and all descendants of that ancestor
Term
Cladogram
Definition
links groups of organisms by showing how evolutionary lines branched off from common ancestors
Term
Derived Characters
Definition
a trait that arose in the most recent common ancestor of a particular lineage and was passed along its descendants
Term
Domain
Definition
a larger, more inclusive category than a kingdom
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