Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Which of the following processes removes carbon from the
Transcript
The animation for multiple choice questions may not work on some computers. During photosynthesis, plants convert atmospheric carbon into proteins. Ecosystem pollution can result from both natural events and human actions. Which of the follow are reactants in a photosynthesis reaction? Oxygen and glucose Carbon dioxide and glucose Carbon dioxide and water Oxygen and water None of the above Which of the following types of biological molecules include the “blueprint” for life? Nucleic acids Amino acids Carbohydrates Lipids Phospholipids What process directly converts atmospheric nitrogen, N2, into a form plants can use? Sedimentation Denitrification Nitrification Eutrophication Nitrogen fixation A pollutant with which of the following characteristics would most likely bioaccumulate in a primary consumer? not taken up by plants degrades slowly in the environment easily broken down in the body fatal in very low concentrations None of the above What is one way that human agriculture affects ecosystems? enhancement of natural stream flow patterns decreased production of pollutants increased growth of trees depletion of soil nutrients None of the above Organisms that are low in marine food chains, such as plankton and shrimp, generally contain very low levels of mercury. Organisms that are higher in the food chains, such as tuna fish and sharks, generally have much higher levels of mercury in their bodies. Which of the following processes best explains this observation? biomagnification natural selection biodegradation pollutant cycling succession Which of the following processes reduces the availability of phosphorus for living things? production of fertilizer burial of marine skeletons weathering of rock agricultural runoff decomposition of dead organisms Which of the following processes removes carbon from the atmosphere? Photosynthesis in ocean plankton Cutting down trees Burning fossil fuels Decomposition of dead organisms Cellular respiration in muscle cells Which of the following elements is required for the formation of nucleic acids and proteins, but not sugars? Carbon Nitrogen Oxygen Hydrogen None of the above Which of the following is an inorganic compound that is part of the nitrogen cycle? glucose water ammonia methane None of the above How do consumers get the nitrogen their bodies need? consumers do not nitrogen by breathing the nitrogen in the air through symbiosis with nitrogen-fixing bacteria through the uptake of nitrogen-containing fertilizers by eating other organisms Living organisms need ____________ because it makes up part of the backbone of DNA molecules and is an important part of cell membranes. phosphorus nitrogen oxygen sulfur molybdenum Which of the following elements is found in all biological molecules? phosphorus carbon nitrogen sulfur plutonium Which of the following processes best explains why an adult fish has a DDT concentration of 2.07 ppm while an osprey has a DDT concentration of 13.80 ppm? bioremediation biomagnification biodegradation bioaccumulation None of the above How is the phosphate made available to plants and animals on Earth? Lightning converts phosphorus into phosphate. Plants release phosphorus during photosynthesis. Bacteria convert phosphorus into phosphate. Weathering releases phosphate into the soil. None of the above A farmer decides to grow peas and soybeans. He plants these two crops in all of his fields. What impact would this have on the nutrients in the soil? There would be an increase in the amount of phosphate (PO43−). There would be an increase in the amount of carbon dioxide (CO2) There would be an increase in the amount of ammonium (NH4+). There would be a decrease in the amount of nitrate (NO3−). None of the above Which organism in the picture on the left would have the highest concentration of PCBs? The Killer Whale What do the following processes have in common? - Volcanic Activity - Decomposition - Cellular Respiration They are all part of the nitrogen cycle. They help reduce greenhouse gases. They increase the PO4 in the soil. They all release CO2 into the atmosphere. None of the above Your classmate tells you that all forest fires are bad. Which of the following observations could you use to challenge your classmate’s assumption? Forest fires recycle nutrients and create more diversity in the forest. Forest fires destroy bird nests and animal habitats. Forest fires release carbon dioxide into the environment. Forest fires threaten human settlements. None of the above.
