7.3 - Speciation and History of Life on Earth

 

Preview

Using the "Early Earth and Origin of Life" PowerPoint (or Chapter 15) PICK 3 events or patterns that happened in Earth's past history that you think are the MOST important for life as it currently exists on this planet. DESCRIBE WHY you chose each event. 

Lesson

Highlights (only add these slides )

Slides: 2-3,15-16, 30-31,40-42, 48-50

You do not need to record this PowerPoint - to be used for 7.3 preview.

7.3 Knowledge Check: Please complete BEFORE THE END OF THE DAY on 4/3 (Wednesday)

Vocab: Ecological Species concept, reproductive isolation, hybrids, morphological species concept, phylogeneitc species concept, prezygotic barriers, postzygotic barriers, allopatric speciation, sympatric speciation, adaptive radiation, hybrid sones,Sexual Selection, Intrasexual, Intersexual, Sensory Exploitation, Conspecific, Runway selection model, Interspecific, Hybridization, Arbitrary Traits - Good Genes Model, Indicator traits , Classic Handicap Model, Condition Dependent Indicator Model , Revealing Indicator Model, Ornaments, Auditory Signals, Vocal Signs, Copulation, Nuptial Gift 

Text Pages:

Ch. 14

P. 276-289

Ch. 15 

P. 292-313

7.3 Lesson Note Template "Puzzle" 

- Complete the note template puzzle using the information presented in ch.14. Fill in the blanks and add real life examples where listed. Due Monday (4/1).

Earth History Timeline (4/3) - Understand the importance of the selected events in the evolution of life on Earth.

Earth History, Macroevolutionary Processes, and Geology Highlights

- Be familiar with the generalized order of the important events seen above. 

- See the list below and the coinciding slides for review of specific events.

1) Age of the Earth and the evidence of first life forms *correction* to slide 2. Life is first observed about 4.1 billion years ago. 

2) Note (on slide 2) what major necessary ingredient was missing from early Earth's atmosphere. How did Oxygen fill the atmosphere? (see slide 3 and slide 16).

3) Note the mass extinction events. Why do mass extinction events lead to speciation? See slide 48 (and previous slides).

4) See slides 13-15 for correct order of species emergence in early earth history. 

Learning Targets:

1) I can list and define the different methods of identifying species. 

2) I can describe pre/post zygotic isolation and provide examples of both. 

3) I can explain the difference between allopatric and sympatric speciation. 

4) I can list the important life forming events that have taken place in Earth's history and describe why they are important.

Assignments:

Anole Lizard Speciation Assignment: 

Speciation Definitions Worksheet and Reading: Please use the article to define the listed terms. Complete this in your notebook or print out the terms. This assignment is due  (3/27). 

Sexual Selection Terms.pdf Sexual Selection Terms.pdf
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Type : pdf
Sexual Selection Article.pdf Sexual Selection Article.pdf
Size : 462.63 Kb
Type : pdf

History of Life on Earth Timeline

- Directions: Using the template and the link provided (below), add the important life enabling events that have brought us to present time. 

History of Life on Earth Timeline Template.pdf History of Life on Earth Timeline Template.pdf
Size : 104.682 Kb
Type : pdf