Units 7-9 Review

7.10B: Describe how biodiversity contributes to the sustainability of an ecosystem Which of the ecosystems below will be more likely to survive a disturbance, such as a tornado? Explain. 7.10C: Observe, record, and describe the role of ecological succession Fill in the Venn diagram for primary and secondary succession. 7.8A: Predict and describe how catastrophic events such as floods, hurricanes, or tornadoes impact ecosystems Match each catastrophic event with its possible effects. Tornado Strong winds destroy plants and buildings Flood Soil erosion along rivers Hurricane Storm surges flood coastal areas and cause damage Wildfire Destroy an ecosystem by burning plants and causing animals to flee or die Earthquake Shaking can cause ground cracks and building damage 7.8B: Analyze the effects of weathering, erosion and deposition on the environment Weathering, erosion and deposition are geological processes that affect the Earth. Weathering is the process that breaks down rock into sediment. Sediment is small pieces of rock or soil. Erosion is when sediment moves from one location to another. Eventually, the sediment experiences deposition when it is dropped in a new location. 7.9A: Analyze the characteristics of objects in our solar system that allow life to exist such as the proximity of the Sun, presence of water, and composition of the atmosphere Which of the following conditions are absolutely necessary for a planet to support life?I. Planetary temperature averages are very moderateII. Composition of atmosphere contains compounds necessary for organic lifeIII. Planetary motion included a tilted axis which results in seasonsIV. Water is present in all phasesV. The atmosphere contains hydrogen All must be present for a planet to support life I, II, and IV II and III II, IV, and V What conditions would you look for if you were looking for life on planets other than Earth? Moderate temperature, ice, and the presence of a gas containing atmosphere. Cold temerature, liquid water, and the absence of gas containing atmosphere. Moderate temperature, liquid water, and presence of a gas containing atmosphere. Hot temperature, liquid water, and the absence of gas containing atmosphere. The Earth's atmosphere contains an ozone layer. This layer contributes to life on Earth by blocking out radiation from the Sun water vapor helium ions atmospheric heat