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Columbia University BUSI B0001 - Ecology Concepts Lab Report

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BioLab3Ecology Concepts Lab Report Name, date, course and section required for password: I. Producers1. Distinguish between an autotroph and a heterotroph. Provide two specific examples.Autotroph: Organisms that produce their own energy by converting the sunlight to chemical energy. Ex. Plants Heterotroph: Organisms that cannot produce their own energy and must obtain it from autotrophic organisms. Ex. Humans 2. Describe Elodea. Why is it a producer?Elodea is a vascular aquatic plant with more than one layer of cells. It is a producer because it has chloroplasts which means it is a photosynthetic. 3. What are the spherical green structures found in leaf cytoplasm? What is their function?4. Chloroplasts and their function is to house the chlorophyll that traps the sun’s energy. II. Consumers1. Based on Lab, Section II, Exercise 2, define and give an example of each of the following:Carnivore: Organisms that eat another organisms’ flesh. Ex. Tiger Parasite: An organism that lives and feeds on or in an organism of a different species and causes harm to its host. Ex. Hookworm2. What is a Paramecium? Paramecia are single-celled protists that are naturally found in aquatic habitats.III. Decomposers1. Name two groups of decomposers.Cocci and Fungi 2. What is a detritivore?Decomposers that feed on particles of organic matter that are produced by the partial decomposition of anima land plant tissues.3. Give an example of a detritivore.© 2016 Access Learning Systems B1This study source was downloaded by 100000801384152 from on 04-03-2022 12:19:43 GMT -05:00 Beetle 4. What is the difference between sporangiophores and sporangia?Sporangiophores are specialized hyphae that elevates on top of the food supply and support sporangia while sporangia are container of spore that give rise to neg mycelium5. What are rhizoids?The root like hyphae that penetrate the food supplyIV. Abiotic Material1. What is abiotic material?Abiotic components include physical conditions and non-living resources that affect living organisms in terms of growth, maintenance, and reproduction.2. Name the molecules that cycle through living systems.Water, CO2, and Phosphate V. Relationships Between Organisms1. What role does ATP play in the metabolism of organisms?ATP is the molecule that transfers energy throughout a cell.2. Name and describe four trophic levels.Trophic Level Where It Gets Food Example1st Trophic Level: Producer Makes its own food Plants make food2nd Trophic Level: Primary Consumer Consumes producers Mice eat plant seeds3rd Trophic Level: Secondary Consumer Consumes primary consumers Snakes eat mice4th Trophic Level: Tertiary Consumer Consumes secondary consumers Hawks eat snakes3. Draw and label a food web containing at least four trophic levels. Use specific organisms and identify each trophic level. List three abiotic components associated with the food web. Sign, date and prepare an image of your drawing and include it with this lab report.4. Write the general equation summarizing photosynthesis.© 2016 Access Learning Systems B2This study source was downloaded by 100000801384152 from on 04-03-2022 12:19:43 GMT -05:00 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.5.Writethe general equation summarizing cellular respiration.Glucose + Oxygen → Carbon Dioxide + Water + ATP6. Based on Lab, Section V, Exercise 4, identify the organisms that compete for food in the food web.VI. Flow of Energy1. An omnivore, such as a raccoon, can obtain nutrition by eating plant and animal material. Which source most efficiently utilizes the sun’s energy?The plant material2. Draw an energy pyramid and label each part. Sign, date and prepare an image of your drawing and include it with this lab report.Summary Questions1. What term describes the place where an organism lives?Habitat2. What is the difference between a food chain and a food web?© 2016 Access Learning Systems B3CompetitorsThis study source was downloaded by 100000801384152 from on 04-03-2022 12:19:43 GMT -05:00 food web is containing many food chains interwoven together3. What term is used to describe a secondary consumer?Carnivore4. Explain how energy enters, flows, and exits an ecosystem.Energy enters the ecosystem in the form of sunlight; it flogs through the ecosystem by gay of food and herbs; then it leaves the ecosystem as log grade heat at each trophic level.5. Explain how abiotic materials cycle in an ecosystem.Abiotic materials are absorbed by producers that are eaten by consumers which remains is used by decomposers to make abiotic material6. Describe the difference between the movement of energy and the movement of abiotic material in an ecosystem.Abiotic materials movements are arranged in a closed cycle while the energy flog is open.7. What determines the trophic level to which an organism belongs?Trophic levels are decided by what each organism eats for energy.8. Name the four components of an ecosystem. Give an example of each.9. Producers: plants, consumers: herbivores, decomposers: bacteria, abiotic 10. material: gaterProducers: plants, consumers: herbivores, decomposers: bacteria, abiotic material: water© 2016 Access Learning Systems B4This study source was downloaded by 100000801384152 from on 04-03-2022 12:19:43 GMT -05:00 by TCPDF

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