Tennessee SPI Objective:Identify several reasons for the importance of maintaining the earth's biodiversity.

Notes Science

Essential LearningStudents will examine and prioritize multiplereasons for maintaining our planet's biodiversity.

Essential QuestionWhat is biodiversity, and why is it important topreserve it?

SPI 0807.5.4Biodiversity

Instructions1) First click on "View" from the top-menu bar.2) Then click on "Slide Show" from the drop-down menu.3) Then use the right-arrow button on your keyboard to advance through this presentation.

SPI 0807.5.4Biodiversity

Biodiversity: is the amount and variety of organisms that live in a given area at a given time.

Measured 3 ways(1) Species Richness- Amount of different species(2) Eveness- Balance of the species(3) Genetic diversity- How closely the species are related

Watch a Holt Online Visual Concept.Chpt 6, eActivities tab, Visual Concepts, Sect One, BiodiversityLink: Holt Online Textbook Website

Notes Science

SPI 0807.5.4 (Biodiversity) Identify several reasons for the importance of maintaining the earth’s biodiversity.

Here are 8 Reasons to Maintain Biodiversity1) To feed the world2) To provide more medicine3) To maintain our economies4) To provide life support for our biosphere5) To avoid disrupting food webs6) To satisfy human curiosity7) To preserve nature's beauty8) To respect life in all its forms

Notes ScienceSPI 0807.5.4Biodiversity

ScienceSPI 0807.5.4BiodiversityNotes

1) To feed the world90 percent of the world's food comes from only 20 plant speciesExamples: Corn, Rice, Wheat, 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 famine.

Reasons to Maintain Biodiversity

SPI 0807.5.4Biodiversity

ScienceNotes

2) To provide more and better medicine40% of medicine prescribed in the USA comes from plants, animals, or microorganisms.With less biodiversity there is less opportunity to find new medicines

Reasons to Maintain Biodiversity

SPI 0807.5.4Biodiversity

ScienceNotes

3) To maintain our economiesVarious plants and animals are vitally important parts of our national and global economiesIf some disaster were to wipe out one or more of these resources, tremendous financial hardship would result

Reasons to Maintain Biodiversity

SPI 0807.5.4Biodiversity

ScienceNotes

4) To provide life support for our biosphereVarious plants and animals provide vital services to life on earthExample: Oysters filter water making it cleaner for other marine lifeExample: Forests absorb carbon dioxide and release oxygen

Reasons to Maintain Biodiversity

SPI 0807.5.4Biodiversity

ScienceNotes

5) To avoid disrupting food websWhen 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

Reasons to Maintain Biodiversity

ScienceSPI 0807.5.4BiodiversityNotes

6) To satisfy human curiosityHuman beings are curious about our world and life in general. People enjoy learning about nature and wildlife

Reasons to Maintain Biodiversity

SPI 0807.5.4Biodiversity

ScienceNotes

7) To preserve nature's beautyBeautiful places with high biodiversity like Yellowstone park, the Smoky Mountains, and the Amazon Rainforest are popular places to visit.

Reasons to Maintain Biodiversity

ScienceSPI 0807.5.4BiodiversityNotes

8) To respect life in all its formsEven organisms that we fear or dislike also have a right to exist

Reasons to Maintain Biodiversity

Here is an example of a question you might see on a quiz or test.

Questions Science

Biodiversity-Question 01

SPI 0807.5.4Biodiversity

Here is an example of a question you might see on a quiz or test.

Questions Science

Biodiversity-Question 02

SPI 0807.5.4Biodiversity

Here is an example of a question you might see on a quiz or test.

Questions Science

Biodiversity-Question 03

SPI 0807.5.4Biodiversity

Here is an example of a question you might see on a quiz or test.

Questions Science

Biodiversity-Question 04

SPI 0807.5.4Biodiversity

Here is an example of a question you might see on a quiz or test.

Questions Science

Biodiversity-Question 05

SPI 0807.5.4Biodiversity