Biology Chapter 5
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Vocabulary
Acid precipitation
Biodiversity
Endangered species
Exotic species
Extinction
Habitat degradation
Vocabulary 2
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Habitat fragmentation
Ozone layer
Threatened species
Captivity
Conservation biology
Habitat corridors
Natural resources
Vocabulary 3
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Reintroduction
Sustainable use
Global warming
Pollution
Genetic engineering
5.1 Vanishing Species
• Biodiversity: the diversity of plant and
animal life in a particular habitat (or in the
world as a whole); "a high level of
biodiversity is desirable"
• How many different types do you have?
Biodiversity
• Makes an ecosystem more resistant to
change or more able to survive a change
in conditions. Not all species may survive,
but some should.
• If a niche goes away, so do all the
organisms that used it.
• Diversity makes an ecosystem more
stable
• Edge Effect (Ecotone)
Human Benefits of biodiversity
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Beauty
Drugs
Ecological stabilty
No plants, no oxygen
No ocean, no moderated temperature on
Earth
Threats to Biodiversity
• Habitat loss
• Habitat fragmentation
• Habitat degradation
Habitat degradation
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Ozone layer
Global warming-does it occur?
Acid precipitation
Water pollution
Land pollution
Groundwater pollution
Land use
Exotic pets
Global Warming
• On Nicenet a question is posted:
• The first question is "Does Global Warming
Exist?
• You must research the topic and give your
opinion. You must give the link or quote or
source that helped you form this opinion. You
must respond to 3 other posts. MIND YOUR
MANNERS!!! Serious polite responses are
required
Nicenet
• You will be graded. You have until Monday
to respond with the answer to question 1
and Until next Friday to respond to at least
3 posts.
Paramecium Lab
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Counting
Stir your cultures.
Take one drop out and make a slide
Move to the 4 corners of the drop (and
cover slide, we will use the small ones)
and count the paramecia there.
• Move to the dead center and count.
Record all counts
Paramecium Lab
• There should be two counts done on each
culture (two drops looked at). Clarify in
your group, who does what.