" The Big Picture!" by Mr C

VSB Science Blog

Biology 11 Oct 26th

Biology 11 Lesson Outline                                      Date Oct 26 th

 

 

Last lessons Objective

 

 

Fossils and changes with time

Evaluation
Today’s Objectives  

1.      Isolation mechanisms (5)

http://abacus.gene.ucl.ac.uk/jim/Sp/isolmech.html

 

2.     Directional Change

http://study.com/academy/lesson/what-is-directional-selection-examples-definition-graph.html

 

3.     Non Directional Change

http://nsdl.niscair.res.in/jspui/bitstream/123456789/888/1/Basic%20Patterns%20of%20Evolution%20-%20formatted.pdf

 

 

 
Topic

Number One

 

Question:

What can separate one species from reproducing with another species?

 

What “barriers” between species can be crossed?

 

What is an example of a “boing” situation?

 

Using the hand out on snails, can you give examples for 4 isolation mechanisms in other species.

 

 

 Lab due at end of the week
Topic

Number Two

Question: How can a family tree be used to show changes in the structures found in elephant teeth?

 

Note

1.   Record data on graph with family number

2.   Connect related family tree names.

3.   No graph line can go vertical. Why?

4.   Plates on the teeth are linked to types of food the elephant can eat.

5.   How is this related to the evolution of the elephant?

 

 
Topic

Number Three

 

Directional Change is a slow and gradual change. An example is the case study of evolution of the horse.

 

In the elephant lab there is both directional and nondirectional change.

 

How are these changes related to isolation mechanisms?

Next Class Exam

 

Make key for next class

Text book Ref

 

Chapter Two Table
You tube Reference Directional Change

https://www.youtube.com/watch?v=Jw8UGcRCxR0

 

Family tree history of elephants

https://www.youtube.com/watch?v=kdzXQOBg9Ng

 

Elephant Evolution

https://www.youtube.com/watch?v=utNxHs6ghSw

 

Using teeth to explore evolution

https://www.youtube.com/watch?v=rDIBtP85F3c

 

 
Take Home Message Isolate a species and that can change how it evolves.

Some changes may be linear and other may branch. Why?

 

Why would a wooly mammoth not survive if it was genetically engineered today?

 

 

posted by Marc Bernard Carmichael in Biology Eleven,Biology Eleven Lesson Outline and have No Comments

No comments

Leave a Reply

Your email address will not be published.


*