Lesson 6.5: Speciation
Figure 1 rock pocket mouse (Chaetodipus intermedius) by Tatiana Gettelman / CC BY-NC-SA 2.0 | Figure 2 Perognathus_flavus by Bob Beatson / CC BY-SA 2.0
| Figure 3 Desert_pocket_mouse by U.S. Fish and Wildlife Service / Public Domain |
Rock Pocket Mouse, Silky Pocket Mouse, and Desert Pocket Mouse are all members of the same family of mice. The differences in the environments that these mice live in have selected for trait differences and led to multiple species of pocket mice.
Lesson Sequence:
Complete these activities in order below each activity is a checklist of things that should be complete before moving to the next activity. Check them off as you complete them.
- Place a circle around your understanding of the learning target for lesson #5
- Place a circle around your understanding of the Key Vocabulary
- Complete Cladogram Activity
- Define Key Vocabulary
6.5.2 Speciation, Types of Selective Pressure, and Patterns of Evolution
- Complete the notes
- Define Key Vocabulary
6.5.3 Speciation Example: Snapping Shrimp
- Read the example of Snapping Shrimp Speciation and look at the diagram
- Complete the questions to summarize how speciation happened in the shrimp.
6.5.4 Speciation Activity: Fruit Fly
6.5.5 Lab Fruit Fly Selective Pressure Example
- Complete the video activity of the starvation resistance
- Complete the Experimental Lab Writeup
- Place a Triangle around your understanding of the learning target for Lesson #5 Place a Triangle around your understanding of the Key Vocabulary
- Take the formative assessment
Lesson 6.5 Learning Targets
Get a hard copy of this table from your teacher. Below are the learning targets you will master during this lesson.
As a pre-assessment, before the lesson begins, please circle the number that describes your current understanding of the learning target.
Before the formative assessment for this lesson, please draw a triangle around the number that describes your understanding of the learning target.
Before the summative assessment, please draw a square around the number that describes your understanding of the learning target.
Learning Targets for Lesson 6.5 | My self-assessment 1 - I have never seen this learning target before. 2 - I have seen this learning target, but I don't know what it means. 3 - I have seen this learning target, and I think I know what it means 4 - I can explain this learning target to another student. | ||||
Explain how genetic variation between two populations of a given species is due, in part, to different selective pressures acting independently on each population and how, over time, those differences lead to new species. |
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Lesson 6.5 Vocabulary
Get a hard copy of this table from your teacher. Below are the vocabulary terms you will master during this lesson.
As a pre-assessment, before the lesson begins, please circle the number that describes your current understanding of the term.
You will complete the “Definitions” and “Extra Practice” (shaded gray*) as we progress throughout the unit.
Before each formative assessment, you will reassess your understanding of the terms. When instructed, please draw a triangle around the number that describes your understanding of the term.
Finally, at the end of the unit (before the summative assessment) you will make a final assessment of your understanding of the terms. When instructed, please draw a square around the number that describes your understanding of the term.
Term 1 - I have never seen this term before. 2 - I have seen this term, but I don't know what it means. 3 - I have seen this term, and I think I know what it means 4 - I can explain this term and its meaning to another student. | Definition | Extra Practice Prefixes and Suffixes: Find out what the word parts mean, then put them together Sentence: Use the term properly in a complete sentence Sketch: Draw a sketch of the term Examples: Give examples of the term On Your Own: Choose your own option or write an alternative definition using your prior knowledge. | ||||
10. Speciation
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11. Cladogram / Phylogenetic Tree
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12. Divergent evolution
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13. Adaptive radiation
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Co-Evolution 1 2 3 4 | Examples: |