2016_17_EcologyReviewWorksheet (1) - Nancy White.docx

2016_17_EcologyReviewWorksheet (1) - Nancy White.docx -...

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Name _____________________________________ Per ____________ Date ____________ The Ecology Review Worksheet 1. Ecology is the _study_______ of the __interaction___________ of organisms with one another and with their _physical environment_____________. 2. Fill in the levels of organization from largest to smallest and describe each. __organism-human_________________ ___population-deer___________________ ___community-rabbit___________________ ____ecosystem-bear__________________ ___biosphere-atmosphere___________________ a. How is a population different than a community? Population is a group of species that live in the same area. Community is all of the different population that live in the same area. 3. Name at least 3 biotic and 3 abiotic factors in the ecosystem to the right (ignore the numbers on the diagram). a. Biotic-bird, butterfly, stoke b. Abiotic-water, air, soil 4. In the Carbon Cycle, List at least 3 ways CO 2 gets INTO of the atmosphere: 1. Human and animal exhalation 2. Burning plant matter 3. Human activity; burning fossil fuels a. How does CO 2 get OUT of the atmosphere? Precipitation mixes with carbon gases to form acid rain, which is deposit in the other 3 spheres. Plants take carbon to photosynthesize.
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Name _____________________________________ Per ____________ Date ____________ 5. Draw a food chain below (showing transfer of energy): indicate the sun, one producer and at least 3 consumers. 6. Explain the Nitrogen Cycle (include nitrogen fixation and denitrification in your answer). The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among the atmosphere , terrestrial , and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation , ammonification , nitrification , and denitrification . The majority of Earth's atmosphere (78%) is nitrogen , making it the largest source of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems. The nitrogen cycle is of particular interest to
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