Unit 2 D - Ecosystem - Unit 2 D Facts to Know 1.1 What are...

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Unit 2 D – Facts to Know 1.1. What are the stops along the way on the hydrologic cycle? Transpiration, condensation, precipitation, evaporation, accumulation, surface runoff, subsurface runoff 1.2. What is the formula for photosynthesis showing inputs and outputs? C 6 H 12 O 6 + O 2 CO 2 + H 2 O + Energy 1.3. By about what percent has the level of carbon dioxide in the atmosphere increased since 1960? 35 +/- 16% of the carbon dioxide increased in the atmosphere since 1960. 1.4. What percentage of the Earth’s water is available to drink? Less than 1% of the water is available to drink. 1.5. Which soil horizon would include a decomposing grasshopper? Which horizon holds most of the nutrients for plants? O horizon includes a decomposing grasshopper. A horizon holds most of the nutrients for plants. 6. About how many species live on our planet? 8.7 million species live on our planet. Unit 2 D – Thought Questions 1. Compare & contrast the following pairs of terms: population-community; habitat-range of tolerance; ecosystem-biome. Population is a group of individuals of one species that live in a particular geographic area; community is all the organisms that inhabit a particular area, an assemblage of populations of different species living close enough together for potential interaction. Organisms are equipped with things to be able to function and adapt well in their environment. Kangaroos have to tolerate higher temperatures because they live in the hot, dry outback. They can go long periods without water and thin fur. An ecosystem is a natural unit consisting of all plants, animals and microorganisms in an area functioning together with all the non-living physical factors of the environment; a biome is a major geographical area of ecologically similar communities of plants, animals, and soil organisms, often referred to as ecosystems. 2. Choose an ecosystem that you are familiar with and identify as many of its components as possible – living and non-living. Discuss the role does living and non-living component plays in the health of the ecosystem.
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  • Spring '14
  • Federman
  • Plants

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