Download Lesson 1: Biodiversity TEK: 7.10 (A) (B) (10) Organisms and

Lesson 1: Biodiversity
TEK: 7.10 (A) (B)
(10) Organisms and environments. The student knows that there
is a relationship between organisms and the environment. The
student is expected to:
(A) observe and describe how different environments, including
microhabitats in schoolyards and biomes, support different
varieties of organisms;
(B) describe how biodiversity contributes to the sustainability of
an ecosystem.
Key Understandings:
Biodiversity contributes to the sustainability of an ecosystem.
• How does biodiversity affect an ecosystem?
• How does biodiversity support different varieties of organisms?
Different environments support different organisms.
• How do different ecosystems support different organisms?
• What are some biotic components of an ecosystem?
• What adaptations help organisms survive in different biomes?
The greater the variety of species, the healthier the ecosystem.
• How does the variety of species within an ecosystem maintain
sustainability?
Genetic variation leads to population stability.
• How does genetic variation affect population stability within an
ecosystem?
Vocabulary:
Ecosystem, sustainability, biodiversity, biome, biotic, adaptation,
niche, abiotic, interaction, habitat, species, population
Lesson 2: Succession
TEK: 7.10 (C)
(10) Organisms and environments. The student knows that there
is a relationship between organisms and the environment. The
student is expected to:
(C) observe, record, and describe the role of ecological
succession such as in a microhabitat of a garden with weeds.
Key Understandings:
Change occurs in ecosystems, including predator/prey
relationships, food, water, air, and shelter balances, range shifts
in flora and fauna, and changes in climate.
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What factors change ecosystems?
What is succession?
What is primary succession?
What is secondary succession?
What are some examples of primary succession in the school
yard?
• What are examples of secondary succession in the school yard?
Vocabulary:
ecological succession, climax community, limiting factors,
primary succession, pioneer species, flora, secondary succession,
micro-habitat, fauna