Day 24 of 30
Human impact: invasive species
Content is AI-assisted and continuously improved through educator review
Learning Objective
Students will explore human impact and invasive species through guided practice and application.
In this lesson, we'll explore human impact: invasive species. Scientific inquiry allows us to investigate and explain natural phenomena.
Evolution is the change in inherited characteristics of biological populations over successive generations. Darwin's natural selection: individuals with traits better suited to their environment survive and reproduce more successfully, passing those traits to offspring. Over many generations, these favorable adaptations become more common. Genetics explains the mechanism: DNA (deoxyribonucleic acid) carries hereditary information in genes. Mutations (changes in DNA) are the raw material of evolution. Mendelian genetics: alleles are inherited versions of genes; dominant alleles mask recessive ones; Punnett squares predict offspring ratios. DNA evidence, fossil records, comparative anatomy, and biogeography all provide evidence for evolution. Understanding evolution is essential for medicine (antibiotic resistance), agriculture (crop improvement), and conservation biology.
As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.
Take notes on key points and make connections to what you've already learned in previous lessons.
To examine systematically through observation and experiment
Observable facts that support or refute a claim
Instructions
Materials Needed
- Lab notebook
- Investigation materials
- Safety equipment if needed
Based on today's lesson, what is one thing you observed or learned?
How could you test or investigate this topic further?
Why is this topic important in the real world?
Teaching Tip
For advanced learners: Encourage deeper analysis and real-world connections. Consider extension activities that allow students to apply human impact: invasive species to novel situations.