Lesson #2:
Microscopic
Natural Selection
Embedded Files
EOU Exam on Thursday, May 1st
Learning Target🎯
Learning Target🎯
I can analyze how natural selection causes certain bacteria to become resistant to antibiotics, and explain how human actions can increase this resistance over time.
Success Criteria ✅
Success Criteria ✅
Success Criteria:
I am successful when I can...
🌟 Engage: 🧫 Observe and describe how antibiotics affect bacterial growth by examining visual models or simulations of bacterial colonies.
🔍 Explore: 🔍 Analyze data showing bacterial survival rates after antibiotic exposure to identify patterns of resistance.
💡 Explain: 🧬 Describe how mutations and natural selection lead to antibiotic-resistant bacteria, using terms like selecting agent, trait, and population.
🚀 Elaborate: 🧠 Predict how continued overuse of antibiotics could impact bacterial evolution and explain the long-term consequences for human health.
🎯 Evaluate: 📝 Use evidence from scientific articles or case studies to support a claim about how human actions influence the evolution of antibiotic resistance through natural selection.
Standards:
Standards:
🎯 HS-LS4-4 (Biological Evolution: Unity and Diversity)
Construct an explanation based on evidence for how natural selection leads to adaptation of populations.
Reminders:
Reminders:
EOU Evolution Exam on Thursday, May 1st
Part #1
Warm-Up
Part 2:
Slow Reveal
Antibiotic Resistant
Bacteria
Part 4
2 Box Induction
Why are antibiotic resistant bacteria increasing?
Red Circle = Normal Bacteria
Blue Circle = Antibiotic Resistant Bacteria
Part 3
Mid-Point Check
To and Through
Turn and Talk:
Discuss the two questions below in your group.
To
To
What are we learning about?
Through
Through
What story are we learning it through?
Part 4
Echo-Echo
Choral-Choral
Vocabulary
Directions:
Compare and Contrast the two boxes.
How are they related?
How are they different?
Variation: Differences in traits or characteristics between individuals in the same species. These differences can affect how well an organism survives in its environment.
Variation caused by:
1) Mutations - random errors in DNA
2) Sexual Reproduction - Recombination, Meiosis and fertilization
Natural Selection: is the process by which organisms better adapted to their environment tend to survive and reproduce more successfully, passing on their advantageous traits to their offspring
Part 5
S.I.T Protocol
Directions:
1) Read the article
2)
S - Write down one surprising fact
I - Write down one interesting fact
T - Write down one troubling fact
Take-Away
Key Concept:
1) Organisms are born better adapted if the trait is good for the environment or has a high adaptive value.
2) An organism DOES NOT get a trait because it needs it or it is good. Traits only pass on if coded in genes (body builders won't have unnaturally strong children unless in genes).
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