Hello Class!
Today in Class we covered:
- What Darwin Didn't see worksheet w/ Video
- Pages 19-22 in the notes-packet
Notes Packet pg. 19
2 types of populations in evolution.
- Evolving
- Non evolving
Micro Evolution - Evolution on a small scale
Here is a example of evolving populations in slight combination with micro evolution
(we all know Darwin loved his Finches)
Genetic Drift
This concept is well explained in the video below.
Page 20
Two types of genetic drift.
- Bottleneck
- The Founder Effect
Both of these terms are explained very clearly, and with good detail in this video.
Page 21
Gene Flow :the continuation of Micro Evolution
Gene Flow - a population may gain or loose alleles by genetic exchange with another population.
The details of gene flow are explained well in the video below.
Mutations - change in an organisms DNA
Page 22.
Natural Selection - a blend of chance and sorting
- Those that work best in the environment leave the most offspring and have a disproportionate impact on the gene pool.
The flowing video explains the principals of natural selection
Only watch 2:10 to 3:45 (the rest is an argument with creationist theorists)
Homework FOR OVER THE WEEKEND
UP. 45-57 ; 49-51
EC- Page 6 OR 1 - 1 pound bag of m&m's
QUIZ TOMORROW
See you tomorrow,
Siddharth
Next Scribe
** I WILL TELL YOU IN CLASS I DON'T KNOW WHO TO PICK**
DRUM ROLL (DUHDUDHDUDHDHDDDUDHHHDDD)
***Danny***
Good Night and Good Luck
Sidd,
ReplyDeleteThis was a good post. The videos actually helped me understand some of the key topics we discussed in class!
I wish you had a video about the effects of natural selection (Directional, Disruptive, and Sustaining). That may have helped because that topic was a bit confusing at first... It would have also been helpful if you would have given a succinct summary of the videos before I watched a video about something I already understood...
Otherwise great job and thanks!
-Sophia
Sidd,
ReplyDeleteGood post! The videos and and pictures were a really good reinforcement of the material we learned in class.
But, I agree with Sophia. You should explain the videos in bullet points.
Like for the bottleneck and founder effect, I agree that they're well explained in the video, but a quick definition would have made it more clear.
Thanks,
Melissa
Sidd-
ReplyDeleteNice post! You used some really good videos that help me visualize exactly what the notes meant. Also, like what Melissa and Sophia said, it would be a good to not just label the videos but also explain them. This would really help some people who don't learn as well from watching thing and need to read about them. Other than that I liked your use of color to make things stand out and the way you organized your post was very good.
Good job!
Eleni