Biodiversity and conservation
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Biodiversity and Conservation . Prokaryota : A Kingdom Divided. Archaea  Possible oldest forms of life Extremophiles Live in high temps, pH, salinity Bacteria  Live pretty much everywhere…even all over and inside you Features: No nucleus ; have nucleoid ( ball of DNA )

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Prokaryota a kingdom divided
Prokaryota: A Kingdom Divided

  • Archaea

    • Possible oldest forms of life

    • Extremophiles

      • Live in high temps, pH, salinity

  • Bacteria

    • Live pretty much everywhere…even all over and inside you

  • Features:

    • No nucleus; have nucleoid(ball of DNA)

    • Circular chromosome/ plasmids

    • No-membrane bound organelles

      • Mitochondria, Goli, etc…

    • Small ribosomes

    • Most are unicellular


  • Group of leftovers

  • Anything eukaryote that is not really a plant, fungi, or animal is a protoctist

  • Features:

    • Eukaryotic; have a nucleus and membrane-bound organelles

    • Mostly unicellular

    • Animal-like; no cell wall and heterotrophs(eat things)

    • Plant-like; photosynthetic


  • Look like plants but do not act like plants

  • Do NOT do photosynthesis; they are heterotrophs

  • Features:

    • Eukaryotic

    • Unicellular or multicellular

    • Spore reproduction cycle

    • Cell walls BUT made of chitin not cellulose

    • Never have cilia/flagella


  • Look like plants because they are…

  • Features:

    • Multicelluar eukaryotes

    • Do photosynthesis; autotrophes

    • Cell walls made from cellulose

    • Some parts can have flagella


  • Don’t look like plants because they aren’t…

  • Okay, sometimes they look like plants

  • Features:

    • Multicellular eukaryotes

    • Heterotrophes; no photosynthesis

    • No cell walls; full motion bodies

    • Some cells have cilia/flagella

Breakdown review
Breakdown Review

  • Prokaryota

  • Protocista

  • Fungi

  • Plantae

  • Animalia

  • Protocista

  • Plantae

  • Prokaryota

  • Protocista

  • Fungi

  • Animalia

This island earth
This Island “Earth”

  • What are the limiting factors on an island?

    • Space, food, fresh water…

  • The Earth is an closed system:

    • Energy is exchanged but matter is not exchanged

    • The resources on the Earth are limited

  • Most population are kept under control by natural limits on growth

    • Food, space, competition, predation, disease…

  • Humans have developed a new way to live by taking control of our environment

  • Since nature cannot complete control our growth, it is our responsibility to do it ourselves

Humans take control
Humans Take Control

  • What is man’s greatest invention?

    • Agriculture

  • Growing our own food means we are not limited by nature as much

  • What happened after agriculture started?

  • Society formed jobs, hierarchy, and economics are born

  • Cities are created to increase trade and wealth

  • Suburbs grew from cities (urban sprawl) because they are safer and cleaner

  • Cities fall apart (urban decay) and humans expand outward into nature

Rapid growth
Rapid Growth

  • What major moments promoted the sudden jumps in human population?

  • Industrial Revolution major growth in industry created more money, more jobs, and better education

  • Understanding Medicine money and growth gives us the resources to improve science which lead to better medicine and longer lifespans

  • Computer Age computers take technology/science to a place never thought possible and society raises its standard of living

Too much of everything
Too Much of Everything

  • Why is a growing population AND higher standards the path to uncontrolled environmental damage?

  • More food is needed people want meat but 5lbs of wheat is needed to make 1lb of meat

  • More technology built on rare elements that will get harder to find forcing us to dig deeper into the Earth

  • More energy both 1 and 2 mean more energy is needed for each person to live the life they want

What is the answer
What is the Answer?

  • Sustainable Development

    • Society must balance growth with the resources that are available, growth in society, and growth in the economy

  • 2 types of resources:

  • Renewable resources can be replaced in a short length of time

    • Trees, animal populations, alternative forms of energy…

  • Nonrenewable resources can be replaces but will take longer than society can wait

    • Coal, oil, natural gas, rivers/lakes

Group discussion
Group Discussion

  • Break up into 3groups

  • Read the question and discuss

  • Write down your thought and be prepared to explain your answers to the class

Discussion questions
Discussion Questions

  • Group 1:

    • In what countries is sustainable development most important? Explain why.

  • Group 2:

    • How might you stop or slow down the growth of cities as more and more people move to cities looking for work?

  • Group 3:

    • Do you think governments/society should limit the excess to meat products since raising animals has such a negative impact on an environment? Why?