Chapter 18Quiz Flashcards
The science of naming and grouping organisms is called?
Systematics
In 1730’s Carolus Linnaeus developed a naming system, called _____________ _____________.
Binomial nomenclature
Group of similar species
genus
Linnaeus system of classification has __ different levels. from smallest to larges. What are the levels?
- species
- genus
3.family
4.order - class
6.phylum
7.kingdom
Each ranking level is called a
taxon
Several genera that share many similarities
family
larger rank of closely related families/group of similar families
order
A _______ is a group of similar orders
class
Endothermic, have body hair, produce milk
mammals
A ________ is a group of similar classes (familes)
phylum
largest class and most inclusive animals and plants
kingdom (phyla)
Not all organisms that look ______ belong in the same ____.
similar
taxon
Yeast cells and human cells are structurally different but have very similar _________
DNA
strategy of grouping species into large categories that reflect lines of descent
Evolutionary Classification
Genes of many organisms show similarities at_______ level
genetic
us a group of species that include a single common ancestor and all descendants of that ancestor
clade
shows evolutionary lines, or linage. Branching off from common ancestors
Cladogram
6 kingdom system (1990) of classification includes
- Eubacteria
- archaebacteria
- Protista
- Fungi
- Plantae
- Animalia
larger, more inclusive category than kingdom
domain
Bacteria- ( Eubacteria)
includes unicellular organisms with out nucleus, have cell walls containing peptidoglycan
Archea (Archaebacteria)
includes unicellular organisms without nucleus does not contain peptidoglycan.
Eukarya-
includes 4 remaining kingdoms protists, fungi, plants, and animals
mostly unicellular
some photosynthetic
some share traits of animals
Protista
heterotrophic- feed on dead matter
mainly unicellular
cell walls made of chitin
fungi
multicellular
photosynthetic autotrophs
non-motile
cell walls made up of cellulose
Plantae
multicellular
heterotrophic
look cell walls and mostly motile
incredible diversity
Animalia