Exam prep

  • 🌱 Introduction to Biology Topics

    • Units of study include Diversity of Living Things, Evolution, Genetic Processes, and the structure/function of Animals and Plants.

  • 🧬 Characteristics of Life

    • Key traits include cellular organization, reproduction, growth, energy use, homeostasis, environmental response, and adaptation.

  • 🌏 Understanding Biodiversity

    • Defined as the variability of organisms in an area (ecosystem, biome, or planet).

    • Estimated 8.75 million species exist, with 18,000 new species identified annually.

  • 📊 Types of Diversity

    • Ecosystem Diversity: Includes various ecosystems like grasslands, tropical rainforests, and marine ecosystems.

    • Species Diversity: Focus on the fundamental classification of species capable of interbreeding.

    • Genetic Diversity: Variation within species allowing adaptation (e.g., different dog breeds).

  • 🌍 Abiotic Factors Impacting Biodiversity

    • Factors such as temperature, precipitation, and topography influence where biodiversity is highest.

  • 🔄 Ecological Productivity

    • Measured in carbon production per unit area and time, influenced by natural and anthropogenic disturbances.

  • ⚠ Threats to Biodiversity

    • Main drivers of loss are habitat loss and climate change; their interactions intensify biodiversity loss.

  • 🦏 Human Impact on Biodiversity

    • Humans, though only 0.01% of biomass, significantly alter ecosystems, leading to species extinction.

    • Notably, amphibians are currently the most at risk.

  • 🌱 Conservation Strategies

    • Focus on ecosystem-level protection rather than individual species to maintain biodiversity.

    • Indigenous Protected Areas play a critical role in conservation efforts in Canada.

  • 🌳 Global Restoration Efforts

    • Movement aims to restore biodiversity by planting 1 trillion trees while avoiding monocultures.

    • Emphasis on collective action for ecosystem management and restoration.

  • 📉 Ecological Footprint vs. Biocapacity

    • The ecological footprint measures land required for resources and waste; biocapacity indicates resource availability.

  • 🔄 Importance of Biodiversity

    • Biodiversity enhances ecosystem resilience, supports nutrient cycling, and ensures food security.