1 / 12

Warm Up!

Warm Up!. What are the 2 parts that make up the scientific name of a species? Using the cladogram, which animals have claws/nails? Which animals have fur/mammary glands? To what is the chimp most closely related to?. Is a hippopotamus more closely related to a pig or a whale?.

guri
Télécharger la présentation

Warm Up!

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Warm Up! • What are the 2 parts that make up the scientific name of a species? • Using the cladogram, which animals have claws/nails? • Which animals have fur/mammary glands? • To what is the chimp most closely related to?

  2. Is a hippopotamus more closely related to a pig or a whale?

  3. Hippos are closely related to whales! • Based on physical comparisons (particularly dental structure & number of toes) it was originally thought that hippos were most closely related to pigs! • BUT DNA analysis indicates that hippos are more closely related to whales!

  4. The Evolutionary Link • Whales & hippos had a common water-loving ancestor 50-60 millions years ago that evolved & split into 2 groups: The pig-like Anthracotheres (died out less than 2.5 mya, leaving only the hippo as a descendent) The Cetaceans (whales, dolphins, & porpoises)

  5. Remember! • Cladograms are used to organize organisms based on evolutionary relationships (phylogeny). • In other words, who is related to who & where did we come from?

  6. Constructing Cladograms

  7. How are cladograms constructed? • Organisms are grouped together based on their derived characteristics.

  8. Creating a Cladogram • You will be given a table of derived characteristics.

  9. Step 1 – Create a Venn Diagram • How many organisms are you comparing? • This number will equal the number of circles in your Venn diagram. • Count the number of characteristics each organism has. • This will be the order that you place the organisms in the Venn diagram.

  10. Step 2 – Convert the Diagram into a Cladogram

More Related