Hey Ninjas…it’s Wednesday! Today you will need: Writing utensil, Journal, Handouts from front. Bellwork for today: Set up Journals: Page:_____ Title: Cladograms Essential Question: How is a cladogram constructed and what does it illustrate?

Due this week: Notecards due Friday (word and definition) Last day to turn in Test Analysis is Friday Next Journal Check will be Friday

Standard B8.B: Categorize organisms using a hierarchical classification system based on similarities and differences shared among groups.

What have we been talking about in class lately?

Use the cladogram homework sheet to follow along with this video!

Cladograms = a diagram that we use to show phylogenies A phylogeny = evolutionary history Cladograms: -show relationships between organisms -are assembled using evidences of evolution -can be changed with new data

Cladograms illustrate evolutionary relationships. Clade: A group of organisms, such as a species, whose members share homologous features derived from a common ancestor.

Speciation: formation of two new species from one B C D E F Clade or lineage TIME The American Heritage® Dictionary of the English Language, Third Edition copyright © 1992 by Houghton Mifflin Company. Electronic version licensed from INSO Corporation; further reproduction and distribution restricted in accordance with the Copyright Law of the United States. All rights reserved. Speciation: formation of two new species from one

Divergent evolution can lead to speciation. Divergent evolution: evolution toward different traits in closely related species. Divergent evolution can lead to speciation. kit fox red fox ancestor

OLDEST TO MOST RECENT HANDOUT PRACTICE PART 1 *new traits develop in this direction Direction of Time…

Example 1 After which animal did protection from the elements arise? Branch points indicate a common ancestor Direction of time After which animal did protection from the elements arise?

Example 2 After which animal did lungs arise?

With your partner, discuss as many traits you can think of for each organism in its column. How are they alike? How are they different? (Write down at least 5 traits for each organism on the left page of notes) Slug Catfish Frog Tiger Human  

Create Your Own Cladogram For the animals on the table, indicate whether the characteristic is present or not. Based on that chart, create a cladogram like the one pictured above.   Cells Backbone Legs Hair Opposable Thumbs Slug Catfish Frog Tiger Human *Draw this table in your notes

  Cells Backbone Legs Hair Opposable Thumbs Slug  X Catfish Frog Tiger Human

Cells Backbone Legs Hair Opposable Thumbs Slug X Catfish Frog Tiger   Cells Backbone Legs Hair Opposable Thumbs Slug  X Catfish X Frog Tiger Human

Cells Backbone Legs Hair Opposable Thumbs Slug X Catfish Frog X Tiger   Cells Backbone Legs Hair Opposable Thumbs Slug  X Catfish X Frog X  Tiger Human

Cells Backbone Legs Hair Opposable Thumbs Slug X Catfish Frog X Tiger   Cells Backbone Legs Hair Opposable Thumbs Slug  X Catfish X Frog X  Tiger Human

Cells Backbone Legs Hair Opposable Thumbs Slug X Catfish Frog X Tiger   Cells Backbone Legs Hair Opposable Thumbs Slug  X Catfish X Frog X  Tiger Human

Transportation Cladogram

YOU HAVE THE REST OF CLASS TO FINISH THE HANDOUT. WHATEVER IS NOT FINISHED IS HOMEWORK INDEPENDENT WORK CHAMPS AT POINT OF CONFUSION YOU MAY ASK A PARTNER YOU MAY ASK ME