1. G9S Chapter 5 Lesson 1 – Biodiversity – p116-121
Vocabulary
Biodiversity
o The variety of life in an area that is determined by the number of ________________
species there
o The greater the biodiversity the more _________________________ an ecosystem is
o As species become extinct, biodiversity ____________________ and so does the health of
the ecosystem
o There are 3 types of biodiversity:
o ____________________ Diversity
o ________________ Diversity
o ___________________ Diversity
Genetic Diversity
o Definition: The variety of genes or inheritable traits in a __________________________
o Visible Traits
o Color
o Shape
o Size

2. G9S Chapter 5 Lesson 1 – Biodiversity – p116-121
o Invisible Advantageous Traits
o Resistance to ____________________________
o Ability to _____________________________ from diseases
o Ability to get energy from new food sources if old ones disappear
o Increases a population’s chance of survival during _________________________ changes
or disease
o Genetic differences may give some individuals __________________________
Species Diversity
o The ____________________ of different species and the relative ___________________
of each species in a biological community
o A habit with many species present at healthy numbers has _______________ species
diversity
o Species diversity changes across ecosystems and biomes
o Polar Regions have _________________ species diversity
o Areas near the ___________________ have high species diversity
Why do you think areas closer to the equator would have higher species diversity?

3. G9S Chapter 5 Lesson 1 – Biodiversity – p116-121
Ecosystem Diversity
 The variety of _________________________ that are present in the biosphere
 Ecosystems include interacting populations and abiotic factors
 Different __________________________ factors support different types of life
o Tropical rainforest have abiotic factors necessary to support tropical bird species
 The _________________________ of ecosystem diversity would likely result in a decrease
in species diversity
The Importance of Biodiversity
Direct Economic Value
o There are several reasons to preserve biodiversity
o Direct Resource Value
 What are organisms used for?

4. G9S Chapter 5 Lesson 1 – Biodiversity – p116-121
o Direct Genetic Value
 Organisms we do not use readily (wild species)
 Provide sources of desirable __________________________
 Possible transfer of desirable genes by genetic engineering
 Resistance to __________________________
 Increased nutritional value
 Resistance to __________________________
 Medicine
 Many __________________________ today are derived from plants
 Many species may have medicinal value that have not be discovered
yet
 Agriculture
o The world’s food crops come from just a few species
 _________________________ genetic diversity
 Transferring of genes by genetic engineering has helped many crops
Explain why Teosinte was valuable even if we can use it for anything.
Indirect Economic Value
o What services does a healthy environment do for humans?

5. G9S Chapter 5 Lesson 1 – Biodiversity – p116-121
Explain how the NYC watershed showed that preserving an ecosystem has distinct economic value
Aesthetic and Scientific Values
 It is difficult to determine the economic _________________ of having a beautiful and
healthy ecosystem
 It’s also difficult to find the economic value of ____________________ healthy ecosystem
and how to protect them.

6. G9S Chapter 5 Lesson 1 – Biodiversity – p116-121
Explain how the NYC watershed showed that preserving an ecosystem has distinct economic value
Aesthetic and Scientific Values
 It is difficult to determine the economic _________________ of having a beautiful and
healthy ecosystem
 It’s also difficult to find the economic value of ____________________ healthy ecosystem
and how to protect them.