Biodiversity

Chloe Sanchez

7 min read

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Study Guide Overview

This study guide covers the impact of biodiversity on ecosystem stability and resilience, a key topic for the AP exam. It explores genetic diversity within species, species diversity including keystone species, and ecosystem resistance and resilience. The guide emphasizes the importance of biodiversity for ecosystem health and function, provides examples, and includes practice questions for each concept.

#🌿 Ecosystem Impacts of Biodiversity 🌿

Biodiversity is KEY! Understanding it is crucial for the AP exam. Expect questions on its impact on ecosystem stability and resilience.

Biodiversity refers to the variety of life in an ecosystem, including diversity within and between species. Higher biodiversity = better ecosystem response to change. Let's dive in!

#🧬 Genetic Diversity 🧬

Key Concept

Genetic diversity is all about the variations within a species. It's the raw material for adaptation and survival. Think of it as a species' backup plan! 💡

Why it matters:
- Increases adaptability and resilience.
- Provides variation for survival during environmental changes (e.g., disease).
- Reduces inbreeding risks (which can lead to lower fertility and disease susceptibility).
Example: A genetically diverse population is more likely to survive a pathogen outbreak because some individuals may have natural immunity. A less diverse population is more vulnerable to extinction. 🦠

Memory Aid

Think of genetic diversity as a diverse toolbox. The more tools you have, the better you can handle different problems!

Key takeaway: More genetic diversity = greater protection from environmental changes. This is a frequent AP exam topic!

Practice Question

json
{
  "multiple_choice": [
    {
      "question": "Which of the following best describes the importance of genetic diversity within a species?",
      "options": [
        "A) It reduces the species' ability to adapt to environmental changes.",
        "B) It increases the species' susceptibility to diseases.",
        "C) It provides the raw material for adaptation and survival.",
        "D) It leads to increased inbreeding and reduced fertility."
      ],
      "answer": "C"
    },
    {
      "question": "A population of plants has very low genetic diversity. Which of the following is the most likely consequence?",
      "options": [
        "A) Increased resistance to pathogens",
        "B) Enhanced ability to adapt to changing conditions",
        "C) Greater resilience to environmental disturbances",
        "D) Increased vulnerability to extinction"
      ],
      "answer": "D"
    }
  ],
  "free_response": {
    "question": "Explain how genetic diversity contributes to the long-term survival of...

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