1 / 8

Do Now

Do Now. Look on the board and write down the name that you choose for our class skeleton. The winner will be announced tomorrow!. Twins!. Do you know more people who are identical twins or fraternal twins?. “Answers”. Identical twins: 3 in every 1000 deliveries

schuyler
Download Presentation

Do Now

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. Do Now • Look on the board and write down the name that you choose for our class skeleton. The winner will be announced tomorrow!

  2. Twins! • Do you know more people who are identical twins or fraternal twins?

  3. “Answers” • Identical twins: 3 in every 1000 deliveries • Fraternal twins: Depends on the mother! (Fathers have no effect) • 6 in every 1000 births in Japan • 14 in every 1000 births in Africa • More common for older mothers (rates double for women 35+!)

  4. Fertilization

  5. Fertilization & Twins • http://www.youtube.com/watch?v=-e5ODsf_TEk

  6. Youtube! • Take notes • http://www.youtube.com/watch?v=BFrVmDgh4v4

  7. Twins • http://www.youtube.com/watch?v=WQNtXCmf-T8 • How it works • http://www.youtube.com/watch?v=oWH4UvMKJPA • 12 year old eggs?

  8. Fertilization Worksheet • Worksheet FYI.. • Due as a PACKET on Monday

More Related