Traits characteristics of life
1 / 13

Traits & Characteristics of Life - PowerPoint PPT Presentation

  • Uploaded on

Traits & Characteristics of Life. Taxonomy is the branch of biology that groups and names organism based on studies of their different characteristics. Classification is the grouping of objects or information based on similarities. . Classification.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' Traits & Characteristics of Life' - gautam

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Traits characteristics of life
Traits & Characteristics of Life

  • Taxonomy is the branch of biology that groups and names organism based on studies of their different characteristics.

  • Classification is the grouping of objects or information based on similarities.


  • As far back as Aristotle 2000 years ago, people have attempted to organize living organisms into separate and distinct categories using visible characteristics, most notably the structure of the organism’s body.

  • However, no uniform system of classification existed until CarolusLinneaus developed a simple system based on form and structure.

Carolus linnaeus
Carolus Linnaeus

  • Swedish naturalist

  • Developed a simple method of grouping organisms that is still used today.

  • Based on the form and structural similarities of organisms.

Scientific names binomial nomenclature
Scientific Names- Binomial Nomenclature

  • Two-word naming system

  • First word-Genus (plural genera) consists of a group of similar species

  • Second word-species name, specific characteristics

  • Latin b/c it’s a “dead” language

  • Should be italicized in print and underlined when handwritten.

  • 1st letter of genus name must be capitalized, species name is never capitalized, always lower case

Taxonomic rankings
Taxonomic Rankings

  • Organisms are ranked in taxa that range from having very broad characteristics to very specific ones.

  • The broader the taxa, the more general its characteristics

  • Order

  • Family

  • Genus

  • species

  • Domain

  • Kingdom

  • Phylum

  • Class

Six kingdoms of organisms
Six Kingdoms of Organisms

  • Archaebacteria

  • Eubacteria

  • Protists

  • Fungi

  • Plants

  • Animals

All prokaryotes
ALL Prokaryotes

  • Organisms with cells that lack distinct membrane-bound nuclei

  • Have cell walls

  • Are microscopic

  • Unicellular

  • Either heterotrophic or autotrophic


  • Prokaryotes that live in very harsh, anaerobic environments, get energy for growth from chemicals in the environment.

  • Biochemically different from other prokaryotes. Cell walls made without peptidoclycan

  • Genes have similar structure to those in eukaryotes

  • Methanogens are organisms that produce methane gas as a by-product of anaerobic cellular respiration.

  • Thermophiles are organisms that can live in water that is very hot (>220ºF) and/or very acidic (<pH 2).

  • Extreme halophiles are organisms that thrive in water ten times saltier than the ocean; and uses salt (NaCl) to produce energy.


  • All of the other prokaryotes that may be decomposers, parasites, a symbiont (lives within other creatures andprovides them benefits), or photosynthetic

  • Have strong cell walls made with peptidoglycan

  • Less complex genetic make-up

  • Live in most habitats, except the extreme ones of archaebacteria

Kingdom protista
Kingdom Protista

  • A eukaryote that lacks complex organ system and have a visible nucleus

  • Lives in moist environments

  • Unicellular, multicellular, and some are colonial

  • Autotrophs or heterotrophs

  • Major phyla include: myxomycota, rhizopoda, ciliophora, euglenophyta, bacillariophyta, phaeophyta, and chlorphyta

Kingdom fungi
Kingdom Fungi

  • Earth’s decomposers

  • Heterotrophs that do not move from place to place

  • Either a unicellular or multicellular eukaryote

  • Absorbs nutrients from dead or decaying organisms

  • Has cell walls made of chitin-a tough, flexible carbohydrate

Kingdom plantae
Kingdom Plantae

  • Multicellular, photosynthetic eukaryotes

  • None move from place to place

  • Cells contain chloroplasts

  • Cell walls made of cellulose

  • Organized into tissues and organ systems

Kingdom animalia
Kingdom Animalia

  • Multicellularheterotrophs

  • Nearly all are able to move from place to place

  • Do not have cell walls

  • Cells organized into tissues and organ systems