unit 1 diversity of living things l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Unit 1: Diversity of Living Things PowerPoint Presentation
Download Presentation
Unit 1: Diversity of Living Things

Loading in 2 Seconds...

play fullscreen
1 / 23

Unit 1: Diversity of Living Things - PowerPoint PPT Presentation


  • 546 Views
  • Uploaded on

Unit 1: Diversity of Living Things. Classify each of these diseases by what organisms cause them. B= Bacteria F=Fungus P= Protist V = Virus O = Other. Strep throat Cold Sores Pink Eye Flu Athlete's Foot Mad Cow . Strep throat. Cold Sores. Pink Eye. Viral Conjunctivitis.

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

PowerPoint Slideshow about 'Unit 1: Diversity of Living Things' - Gabriel


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
slide2
Classify each of these diseases by what organisms cause them.B= Bacteria F=Fungus P=Protist V = Virus O = Other
  • Strep throat Cold Sores
  • Pink Eye Flu
  • Athlete's Foot Mad Cow
pink eye
Pink Eye
  • Viral Conjunctivitis
slide6
Flu
  • Influenza virus
mad cow
Mad Cow
  • bovine spongiform encephalopathy (BSE)
  • Other – Prions (protein machines)
classification
Classification
  • Aristotle - 4th century B.C. philosopher
  • Classified living things into two groups
    • Animal
    • Plant
  • Not based

upon

evolutionary

theory

terms to know
Terms to Know…
  • Classification : grouping based on similiarities
  • Taxonomy : a branch of biology that groups and names organisms based on different characteristics
  • Monophyletic: common descent from a single ancestor

What is the difference between monophyletic, polyphyletic, and paraphyletic?

slide11

The Tree of Life Evolves

  • 1990s = Domains, as proposed by Carl Woese
  • These 'domains' exist above kingdoms

Changing Number of Kingdoms

Names of Kingdoms

Introduced

1700’s

Plantae

Animalia

Late 1800’s

Plantae

Protista

Animalia

1950’s

Animalia

Monera

Protista

Plantae

Fungi

Archae-bacteria

Animalia

1990’s

Eubacteria

Protista

Fungi

Plantae

today
Today
  • Domains: Classify all living things into 3 different types based on biochemistry and cellular morphology.
  • The three domains are ...
  • Eukarya (eukaryotes)
    • have a nucleus and well defined complex organelles
  • Bacteria (Eubacteria) [Prokaryotes]
    • do NOT have a nucleus and do NOT have well defined complex organelles
  • Archaea (Archaeobacteria/Archaeabacteria)
    • do NOT have a nucleus and do NOT have well defined complex organelles
    • live in extreme environments (eg ocean vents, inside glaciers)

Cellular Structure

cladograms
Cladograms
  • Cladograms shows how organisms are related based on shared, derived characteristics such as feathers, hair, scales, etc.
cladograms16
Cladograms
  • More specifically, cladograms is a method of classifying species of organisms into groups called 'clades'
  • Consists of an ancestor organism and all its 'descendents'
  • Essentially, a clade = a single branch = tree of life
  • Focuses on shared derived characteristics (aka. synapomorphies)
  • Reflects the relative recency of a common ancestor or the sharing of a homologous feature
remember
Remember
  • Basis of constructing a valid cladogram is the ability to identify the characteristics of the ancestral population and those of the descendents
  • http://evolution.berkeley.edu/evolibrary/article/0_0_0/evo_06
cladograms are linked to venn diagrams
Cladograms are linked to Venn Diagrams
  • Review front of cladogram

sheet

make a venn diagram from the following data
Make a Venn diagram from the following data

LA CU GC TE

Eats Blue

Eats Red

Eats goldfish

slide20

LA CU GC TE

Eats blue

Eats green

Eats goldfish

rules
Rules
  • All cladistic groupings must share a common ancestor
  • All species derived from a common ancestor must be included in the taxon

Taxon – a taxonomic group of any size; a group of (one or more) organisms which are usually phylogenetically related and which have common characteristics