ch 5 Flashcards
the process of arranging organisms into groups based on similarities
taxonomy
did a lot of the organizing for the current version of taxonomy
Carolus Linnaeus
english clergyman who introduced concept of species
John Ray
The Basis for Modern Classification
Kingdom
Phylum
Class
Order
Family
Genus
Species
a group of very similar organisms that can interbreed freely in nature
species
a group of similar organisms that are all descended from a single group of originally created species
kind
two name naming system
Binomial nomenclature
have membrane-bound nuclei and membrane-enclosed organelles,
Eukaryotes
do not have membrane-bound nuclei
Prokaryotes
green plants; multicellular eukaryotes that have cell walls and usually perform photosynthesis
Plantae
yeasts, molds, and mushrooms; multicellular eukaryotes that have cell walls and do not conduct photosynthesis
Fungi
multicellular animals; eukaryotes without cell walls; usually can move and collect food
Animalia
eukaryotes that are not green plants, fungi, or multicellular animals; mostly unicellular organisms, such as amoeba, euglena, and paramecium
Protista
true bacteria, including common disease causing bacteria; prokaryotes with cell walls made of the substance peptidoglycan
Eubacteria
prokaryotes that do not contain peptidoglycan in their cell walls and have other key differences from true bacteria; many live in extreme environments (e.g., very cold habitats or highly saline, acidic, or alkaline water)
Archaebacteria
Three parts of Domain
Eukarya, Bacteria, and Archaea
grouping based on the supposed evolutionary relationships of organisms
Phylogeny
assumes that how closely related two organisms are determines how many characteristics they have in common
Cladistics
depict all forms of life coming from a single life form (single cell)
Phylogenetic trees
plants that reproduce by seeds formed in flowers
angiosperm
plants with vascular tissue (xylem and phloem)
vascular plants
plants without vascular tissue (xylem and phloem)
Nonvascular plants
means “naked seed”; produce seeds not covered by the walls of an ovary
Gymnosperm
cone bearing gymnosperms
Conifers
pollen producing cones
Staminate cones
seed producing cones. They produce the ovules, which are fertilized by the pollen from staminate cones
Ovulate cones
Examples of conifers
Douglas fit
Giant sequoia
Bristlecone pine
Coast redwood
Pine
Spruce
Wollemi pine
some of the oldest living things on earth
Bristlecone pine
some of the tallest things on earth
Coast redwood
2-5 needles at a time
pine
one needle at a time
spruce
thought to be extinct but is not
Wollemi pine
4 gymnosperms
Cycad
Ginkgo
Gnetophyta
Conifers
resemble palm trees, grow today only in certain tropical and subtropical regions (gymnosperm)
Cycad
cone bearing gymnosperms
conifer
oriental gymnosperm with two lobed, fan shaped leaves
Ginkgo
small phylum of gymnosperms with varied characteristics; reproduce through seeds formed in cones
Gnetophyta