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What are four principles of ecosystem function and what do they mean?
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- 1.) Describe a food chain that has at least four different trophic levels. Label the tropic level (Producer, Primary consumer, Secondary Consumer, or Tertiary Consumer), whether the organism is a(n) autotroph or heterotroph, and provide an example of an organism at each tropic level. 2.)Name two biological processes involved in rapid carbon exchange: 3.)Name two geologic processes involved in long-term carbon exchange:3. Modern agroecosystems differ from natural ecosystems in all of the following ways except: A. they (the artificial ecosystems) make the food chain more complex, causing higher biodiversity B. they (the artificial ecosystems) tend to be less complex than the natural ecosystems C. they attempt to suppress ecological succession by allowing only pioneer species to thrive D. they tend to raise crops in monoculture (a single species) rather than multiculture E. they tend to plant crops in neat, orderly rows rather than complex spatial arrangements1. On the savannah of African exist two animals, the African Wild Dogs (Lycaon pictus) and the Spotted Hyenas (Crocuta crocuta). Both of these animals occupy a very similar niche in their community – a social carnivore, which hunts in packs. However, when their niche does completely overlap the Hyena will win the fight. Use this information to answer the following questions. a) If these two animals were to occupy the same habitat, knowing what you know about these populations, what do you think the outcome of these two populations would be? b) The African Wild Dog hunts at twilight, while the Spotted Hyenas hunt at night. This separation of niches allows for what ecological process to happen? Why is it important that this process happens? c) The population of African Wild Dogs is much smaller, and very isolated from one another. If you were trying to prevent this animal from going extinct – what would you focus your resources on conservation wise? (There are a number of answers for…
- 6 of 6 32. Ecosystems will have a greater chance of being stable over a long period of time if they have A. organisms imported by humans from other environments B. a sudden change in climate C. a diversity of organisms D. predators eliminated from the food chains 33. Which of the following is NOT a way that humans can protect biodiversity? A. Developing state parks B. Buying products that aren't sustainably sourced (palm oil, coffee, chocolate, etc...) C. Legally protecting endangered species to preserve biodiversity D. Regulating hunting and fishing 34. A wooded area has been divided by a housing development and is threatening the biodiversity of the area. What term is used to describe this threat from human activities? A. habitat fragmentation B. acid precipitation C. habitat augmentation D. global warming 35. Which of the following is NOT a characteristic of an invasive species? A. They grow rapidly and outcompete with other plants or animals B. They produce large numbers of seeds…1. What do the following terms mean?(a) the Community,b) population,c) ecological niche6.) What is adaptation? It is a physical or behavioral characteristic that helps _ a.) plant and animals to reproduce b.) a plant grows. c.) a living thing walk d.) a living thing survive. 7.) Which of the following causes a decreasing wildlife population in most of the places in our country? a.) Loss of natural disturbances b.) Loss of carrying capacity c.) Loss of limiting factor d.) Loss of habitat 8.) Cocolisap infestation outbreak has been declared in some parts of the Philippines. The cocolisap feeds on the sap of the coconut tree and injects toxic enzymes, resulting in discolored leaves and deformed plant tissues that retard its growth of coconut tree. This, results in a decrease of the survival rate of coconut trees. Which of the following factors limits the population of coconut trees? a.) Diseases and parasites b.) Competition for resources c.) Emigration d.) Predation 9.) If the number of births in a population is the same as the number of deaths in a…
- Give one term in each of the following descriptions. (a) ..................is the progressive development of vegetation in an area through a series of plant communities, ending in a climax community. (b) .... is a broad ecological unit that represents a major life zone extending over a large natural area (c) these have comparatively lower fibre content; remain nutritive in winter and after maturity, hence remain palatable to stock. (d) is the process by which a quiescent (state of inactivity) embryonic plant contained within a caryopsis (seed) is stimulated to develop into a seedling. (e) The unit of vegetation whose variation is small enough to permit it to have the same farming potentialities6. In this food chain case, there are six trophic levels. Which of the following sequences lists the trophic levels from "first" or lowest to "sixth" or highest? a. copepods, herring, phytoplankton, swordfish, mackerel, human b. herring, human, copepods, mackerel, phytoplankton, swordfish c. phytoplankton, copepods, herring, mackerel, swordfish, humanWhat exactly is global warming? What role does the use of fossil fuels have in global warming? What are the major implications of global warming? Please keep in mind that you write research sources.
- 21Lab 5. Integrated Pest Management (IPM) Go to the following website: http://ipm.ucanr.edu and answer the questions bellow: What is IPM? How does it work? Define: Biological control Cultural controls Mechanical and physical controls Chemical control Describe IPM for one agricultural pest: https://www2.ipm.ucanr.edu/agriculture/, choose a crop, go to Insects and Mites, and choose one insect or mite, then provide with the following information: Name the crop Name and describe a pest Describe the pest damage Describe the pest management including: Biological Control Cultural Control Organically Acceptable Methods Example: http://ipm.ucanr.edu/PMG//r1300611.html Crop Alfalfa Pest Alfalfa Caterpillar Scientific Name: Colias eurytheme Description of the Pest The yellow or white butterflies of the alfalfa caterpillar lay eggs on the new growth of alfalfa that is less than 6 inches tall. Eggs hatch into green caterpillars in 3 to 7 days. Full-grown…8 What purpose does paragraph 8 serve in the text? A. It explains additional factors identified by the simulation. B. It outlines how the simulation models the problem. C. It illustrates the results predicted by the simulation. D. It describes the variables used to create the simulation.