Ms. Frost  A world of biology.....
  • Welcome
    • Data bases for labs
    • IB Calendar
  • IB: Introduction to cells
    • Origin and Division of Cells
    • Membrane Structure and transport
    • Structure of DNA and RNA
    • DNA Replication
    • Transcription and gene expression
    • Translation
    • Genetic modification and biotechnology
  • Molecules to Metabolism
    • Molecular diagrams
    • Water
    • Carbohydrates and Lipids
    • Proteins and Enzymes
    • Lactase / Enzyme Inhibition
    • Cellular Respiration
    • Phases of Cellular Respiration
    • Earth atmosphere / Color
    • Photosynthesis
  • Digestion and absorption
    • The kidney and osmoregulation
    • Neurons and synapses
    • Muscle and Movement
    • The blood system
    • Gas exchange
    • Defense against infectious disease
    • Antibody production and vaccination
    • Hormones, Homeostasis
    • Sexual reproduction
  • Genetics and Genes
    • Chromosomes
    • Meoisis
    • Inheritance
    • MORE Inheritance
  • Evidence of evolution
    • Natural selection
    • Gene pools and speciation
    • Classification of biodiversity
    • Cladisitics
  • Ecology Species, communities and ecosystems
    • Energy Flow
    • Carbon Cycling
    • Climate change
  • Option C: Species and communities
    • Option C: Communities and ecosystems
    • Option C: Impacts of human on ecosystems
    • Option C: Conservation of biodiversity
  • Plants: Transport in the xylem of plants
    • Transport in the phloem of plants
    • Growth in plants
    • Reproduction in plants
  • Anatomy Language
    • Epithelial/Connective/Skeletal
    • Muscular / Nervous Tussue
    • Heart
  • Western Hills Website
  • Science in the News
  • World Population Clock

Option C: Impacts of humans on ecosystems

Pollutants become concentrated in the tissues of organisms at higher trophic levels by biomagnification.
​
Skill: Analysis of data illustrating the causes and consequences of biomagnification.  Click link to illustrate NOAA biomagnification of mercury levels in fish and birds.  
simulation Biomagnification
Biomagnification info.game
Picture
Competitive exclusion and the absence of predators can lead to reduction in the numbers of endemic species when alien species become invasive.

This interactive simulation shows how populations behave when grown alone or when mixed together.  This is competitive exclusion - how can this be illustrated with an invasive species population?
Population Biology

Picture
Picture
Introduced alien species can escape into local ecosystems and become invasive.
Application: Study of the introduction of Cane Toads in Australia and one other local example of the introduction of an alien species.
Skill: Evaluation of eradication programmes and biological control as measures to reduce the impact of alien species.
Click the link to read about biocontrol of invasive species in Australia.
invasive species
Application: Discussion of the trade off between control of malarial parasite and DDT pollution. 
Picture
Picture
Picture
Macroplastic and microplastic debris has accumulated in marine environments.
Application: Case study of the impact of marine plastic debris on Layson Albrotross and one other named species.
Google:  A bird named Wisdom
She is a Layson albatross that has seen a clean world and the awful world of plastics.  She lives on the island of Midway with the largest colony of these albatrosses and is now 67.  
Picture
Leatherback sea turtles
Microplastics are EVERYWHERE


International-mindedness:
Over 100 countries across the globe have agreed to ban the production of CFCs to reduce the depletion of the ozone layer.

Aim 8: Many developed countries export toxic waste to less developed countries. Is financial compensation a fair exchange for hazardous waste?

BioKnowledgy C.3 Impacts of humans on ecosystems from Chris Paine
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  • Welcome
    • Data bases for labs
    • IB Calendar
  • IB: Introduction to cells
    • Origin and Division of Cells
    • Membrane Structure and transport
    • Structure of DNA and RNA
    • DNA Replication
    • Transcription and gene expression
    • Translation
    • Genetic modification and biotechnology
  • Molecules to Metabolism
    • Molecular diagrams
    • Water
    • Carbohydrates and Lipids
    • Proteins and Enzymes
    • Lactase / Enzyme Inhibition
    • Cellular Respiration
    • Phases of Cellular Respiration
    • Earth atmosphere / Color
    • Photosynthesis
  • Digestion and absorption
    • The kidney and osmoregulation
    • Neurons and synapses
    • Muscle and Movement
    • The blood system
    • Gas exchange
    • Defense against infectious disease
    • Antibody production and vaccination
    • Hormones, Homeostasis
    • Sexual reproduction
  • Genetics and Genes
    • Chromosomes
    • Meoisis
    • Inheritance
    • MORE Inheritance
  • Evidence of evolution
    • Natural selection
    • Gene pools and speciation
    • Classification of biodiversity
    • Cladisitics
  • Ecology Species, communities and ecosystems
    • Energy Flow
    • Carbon Cycling
    • Climate change
  • Option C: Species and communities
    • Option C: Communities and ecosystems
    • Option C: Impacts of human on ecosystems
    • Option C: Conservation of biodiversity
  • Plants: Transport in the xylem of plants
    • Transport in the phloem of plants
    • Growth in plants
    • Reproduction in plants
  • Anatomy Language
    • Epithelial/Connective/Skeletal
    • Muscular / Nervous Tussue
    • Heart
  • Western Hills Website
  • Science in the News
  • World Population Clock