Scribe Post: 2/14

Hello my fabulous bio class and visitors,

Happy Valentines Day! :)

Today in class we:

• Discussed our upcoming unit
• Went over details for the nature magazine cover/article (UP page 5-6A)
  
• Classification notes
• Shark lab (UP Page 11-14)
  

Homework:

• UP page 7-10
• UP page 11-14 ( Shark lab )

Tomorrow:

• Fungus & animal notes
• Lab # 44
• GET PUMPED!!

For you sleepyheads, we are in a new unit! It is called "The diversity of Life"...

We have an upcoming project due 3/2 not 3/4!!! It is a nature magazine cover and article on your choice of invertebrate. You have to digitally create a cover and and article in collumns with pictures and in-text citations!

NOTES: Classifying the Diversity of Life

Some basic definitions you need to know!

• systematics- reconstructing evolutionary history by studying biological diversity from the past and the present.
• taxonomy- the identification, naming, and classification of species. They do this because they want to put things in order so animals make sense how we are related.

• Carolus Linneaus- He lived from 1707 to 1778. He was a physician and a botanist. Themost important thing he did was started a two part name for each species!
  

• He named it Binomean nomeclature. This means 2 name-naming system. He used latin in his name because it is the root of all languages.

• His system has a hierachial classification of species into broader and broader groups of organisms.
• Kingdom, phylum, class, order, family, genus, and species. This could also be known as KPCOFGS. A way to remember that is King pelican comes over for good sprouts.

• In the past, species of animals where grouped by their physical apperance, which could prove to not be so true.

The Cladistic Revolution

• Since we have computer technology and DNA we have a new and better way of classifying species
• Cladistic anaylasis- scientific search for clades, or branches, which consist of a common ancestor and every descendant that came from it.
• Phylogeny- the evolutionary history of a group or species
• Cladistic anylasis is the most widely used method in systematics.

• Cladistic anaylasis has proved many previous thoughts wrong, for example birds and reptiles are now in the same class.

Here is an exampe of cladistic analysis chart.

• They used to use the 5 Kingdom Classification System this is the OLD WAY!!!
  
• This was thought of in 1969 by Robert H. Wittaker
• It was split into 5 kingdoms, animalia, fungi, plantae, protista, and monera.
• We now have six kingdoms, we split monera.

Now we have 3 Domains

This is an alternative to the five kingdom system

• The 3 domains are bacteria, archaea, and eukarya.
  
• Bacteria and archaea are prokaryotes, and eukarya is from eukaryotes.
  

Taxonomic Key

• Always start at the top of the key.
• Use a taxonomic key!
• Dichotomomous key- 2 opposing staments at one time

Thats about all we did for notes, the last couple minutes we worked on our homework and the shark lab!!!

If you want full notes then check on moodle!!!!

Have a great night guys,

Minji

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