Field studies are used to study animals in the labratory., true, wild, false, nature, The substances that are present when a chemical reaction begins are the products., true, reactants, false, reactions, Proteins that speed up the rate of chemical reactions in the cell without requiring high temps are antibodies, true, enzymes, false, substances, Producers release carbon dioxide into the atmosphere during the process of photosynthesis., true, H2O, false, oxygen, Some autotrophs obtain their energy from hydrogen sulfide to produce carbohydrates., true, substances , false, electrons, Aquatic ecosystems can receive a large input of a limiting nutrient from the runoff from heavily fertilized fields., true, non limiting, false, limited , A symbiotic relationship between organisms in which one species benefits and the other is neither helped nor harmed is mutualism., true, commenalisim , false, diversity, An existing community is gradually replaced by another community in an ecological succession., true, mutualism, false, reactions, The tropical rain forest is characterized by a wet season and a dry season., true, dry, false, moist, Tall perennial grasses and herds of grazing herbivores are inhabitants of the desert biome., true, dry plains, false, tropical savannah, The coastal ocean zone and estuaries are alike in that both are important as breeding and nesting areas for birds., true, wet lands, false, wet shores, Logistic growth occurs when a populations growth slows or stops following a period of rapid growth., true, growth rate, false, death rate, The exponential model of population growth accounts for the influence of carrying capacity., true, logistic, false, dynamic, Density dependent limiting factors affect all population whether the population size is two or 100., true, nature dependent, false, independent, The indication that a country has completed the demographic transition is a low birthrate and low death rate., true, high death rate, false, high birth rate, A sustainable development practice that can pollute water with fish wastes if not properly managed is catch limits., true , aqua feature, false, aquaculture , Most crop plants have wild relatives with useful traits such as resistance to disease., true, curable , false, harmful, Conservation goals must be weighed against economic costs., true, reservation, false, closure, If a cell contains a nucleus it must be a prokaryote., true, eukaryote, false, membrane, The assembly of ribosomes begins in a small dense structure called the chromatin., true, nucleus , false, nucleolus, The cytoskeleton helps to move organelles within the cell., true, ribosomes, false, membrane, The nuclear envelope regulates which substances enter and leave a cell., true, cell membrane, false, enzymes , Cell specialization means that the cells in an organism are uniquely suited to reproduce., true, perform new tasks, false, perform diff tasks, Heterotrophs require oxygen., true, autotrophs, false, autotrophs and heterotrophs, The light dependent reactions supply the Calvin cycle with CO2 and ATP., true, NADPH, false, NADP, During the light dependent reactions plants use the energy in ATP and NADPH to build high energy sugars., true, calvin cycle, false, movement, The size of the human population tends to increase with time., true, decrease, false, stay the same, If a plant and a burning candle are placed under a bell jar the candle will burn because the plant gives off carbon dioxide., true, oxygen, false, H2O.

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