TEKS

Part 1: Ecosystems and Biodiversity

7.10 Organisms and environment. The student knows that there is a relationship between organisms and the environment. The student is expected to:

• 7.10A observe and describe how different environments, including microhabitats in schoolyards biomes, support different varieties of organisms
• 7.10B describe how biodiversity contributes to the sustainability of an ecosystem

Part 2: Changes in Ecosystems

7.8 Earth and space. The student knows that natural events and human activity can impact Earth systems. The student is expected to:

• 7.8A predict and describe how different types of catastrophic events impact ecosystems such as floods, hurricanes, or tornadoes.
• 7.8B analyze the effects of weathering, erosion, and deposition on the environment in ecoregions of Texas
• 7.8C model the effects of human activity on groundwater and surface water in a watershed

7.10 Organisms and environment. The student knows that there is a relationship between organisms and the environment. The student is expected to:

• 7.10C observe, record, and describe the role of ecological succession such as in a micro-habitat of a garden with weeds