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HSC Biology

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  1. Module 1: Cells as the Basis of Life
    Cell Structure
  2. Cell Function
    4 Topics
  3. Module 2: Organisation of Living Things
    Organisation of Cells
    2 Topics
  4. Nutrient and Gas Requirements
    6 Topics
  5. Transport
    2 Topics
  6. Module 3: Biological Diversity
    Effects of the Environment on Organisms
    2 Topics
    1. Effects of Selection Pressures
    2. Changes due to Selection Pressures
  7. Adaptations
  8. Theory of Evolution by Natural Selection
  9. Evolution - the Evidence
  10. Module 4: Ecosystem Dynamics
    Population Dynamics
  11. Past Ecosystems
  12. Future Ecosystems
  13. Module 5: Heredity
    Reproduction
  14. Cell Replication
  15. DNA and Polypeptide Synthesis
  16. Genetic Variation
  17. Inheritance Patterns in a Population
  18. Module 6: Genetic Change
    Mutation
    1 Topic
  19. Biotechnology
  20. Genetic Technologies
  21. Module 7: Infectious Disease
    Causes of Infectious Disease
  22. Responses to Pathogens
  23. Immunity
  24. Prevention, Treatment and Control
  25. Module 8: Non-infectious Disease and Disorders
    Homeostasis
  26. Causes and Effects
  27. Epidemiology
  28. Prevention
  29. Technologies and Disorders
HSC Biology Effects of the Environment on Organisms
In Progress
Lesson 6 of 29
In Progress

Effects of the Environment on Organisms

How do environmental pressures promote a change in species diversity and abundance?

Inquiry Question

Overview

  • Predict the effects of selection pressures on organisms in ecosystems, including:
    • Biotic factors
    • Abiotic factors
  • Investigate changes in a population of organisms due to selection pressures over time, for example:
    • Cane toads in Australia
    • Prickly pear distribution in Australia