Threats to Biodiversity
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Objective
I can analyze the factors that threaten biodiversity.
Part 1 of 4
Warm-up video
TED-Ed · 4:19Vetted channel
We don't generate video — this one is by TED-Ed on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Biodiversity is built out of three intertwined features: ecosystem diversity, species diversity, and genetic diversity.
- 2
The more intertwining there is between these features, the denser and more resilient the weave of an ecosystem becomes.
- 3
The loss of a keystone organism, such as coral, due to factors like destructive fishing practices, pollution, and ocean acidification, can undermine an entire ecosystem.
Part 3 of 4
Practice
10 questions
What are the three intertwined features that build biodiversity, as described in the video?
Explain how genetic diversity within a species helps it cope with environmental changes.
Part 4 of 4
Exit ticket
Quick comprehension check
“Using the example of coral reefs from the provided content, explain how the loss of a keystone species can threaten the entire fabric of biodiversity in an ecosystem.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
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