Bell Work
Instructions
PRESS THE SPI
RIGHT-ARROW
0807.5.4 BUTTON TO
ADVANCEBiodiversity
THROUGH THE SLIDES!
Nov 15, 2013
1) First go get your clickers
2) Then pick up a study guide from the front table
3) Go ahead and write down the correct answers
Just look at the other screen
4) Then take out a sheet of paper & number it from 1 to 5
PLAN
SPI 0807.5.4
Biodiversity

1) Discuss objective and bell work (study guide)
2) Celebrate birthdays
3) View notes about biodiversity
4) Complete a 5-question assignment
5) Discuss most missed answers from yesterday
COPY IN YOUR AGENDA:
Homework:
 Use the study guides to prepare for Monday's "pre-test"
Notes
SPI 0807.5.4
Biodiversity

SPI 0807.5.4 (Biodiversity) Identify several reasons for
the importance of maintaining the earth’s biodiversity.
8 Reasons to Maintain Biodiversity
1) To feed the world
2) To provide more medicine
3) To maintain our economies
4) To provide life support for our biosphere
5) To avoid disrupting food webs
6) To satisfy human curiosity
7) To preserve nature's beauty
8) To respect life in all its forms
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

1) To feed the world
90 percent of the world's food come from only 20 plant species
Examples: Corn, Wheat, Rice, Soybeans, etc.
If a disease or natural disaster damages or wipes out one or more
of these crops, famine would result (millions could starve)
 With more varieties of these types of plants, we increase our
chances of avoiding and/or reducing the impact of a disaster
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

2) To provide more and better medicine
40% of medicine prescribed in the USA comes from plants,
animals, or microorganisms.
With less biodiversity there is less opportunity to find new
medicines
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

3) To maintain our economies
Various plants and animals are vitally important parts of our
national and global economies
If some disaster were to wipe out one or more of these resources,
tremendous financial hardship would result
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

4) To provide life support for our biosphere
Various plants and animals provide vital services to life on earth
Example: Oysters filter water making it cleaner for other marine life
Example: Forest absorb carbon dioxide and release oxygen
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

5) To avoid disrupting food webs
When we over-hunt or over-harvest wild plants and wild animals
and/or wipe out species due to pollution and habitat destruction, we
seriously disrupt the food chains and food webs
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

6) To satisfy human curiosity
Human beings naturally are curious about our world and life in
general.
People enjoy learning about wildlife (both plants & animals)
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

7) To preserve nature's beauty
Beautiful places with high biodiversity like Yellowstone park, the
Smoky Mountains, and the Amazon Rainforest are popular places to
visit
Notes
SPI 0807.5.4
Biodiversity
8 Reasons to Maintain Biodiversity

8) To respect life in all its forms
Even organisms that we fear or dislike also have a right to exist