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20. Which of the following would result in a decrease in the size of your ecolog

ID: 267146 • Letter: 2

Question

20. Which of the following would result in a decrease in the size of your ecological footprint? A) purchasing produce from local farmers instead of produce shipped from overseas B) watching news online instead of on the television C) keeping your house set to a warmer temperature during cold months D) only purchasing clothing that was made overseas 21. Using records taken by Henry David Thoreau in the 1840s, scientists have documented what pattern of change in flowering plants around Boston, Massachusetts? A) As temperatures have warmed, flowering occurs earlier in many species. B) As temperatures have warmed, flowering occurs later in many species. C) As temperatures become more variable, flowering occurs earlier in many species. D) As temperatures become more variable, flowering occurs later in many species. 22. Which of the following is NOT a result of excess greenhouse gases added to the atmosphere by human activities? A) a decrease in Earth's surface temperature B) an increase in the pH of Earth's oceans C) a rise of sea levels D) changes in plant/animal species 23. An organism classified as a eukaryote could be which of the following? A) a photoautotroph or a photoheterotroph B) a chemoheterotroph or a photoautotroph C) a photoheterotroph or a chemoheterotroph D) a chemoautotroph or a chemoheterotroph 24. A researcher discovers a new prokaryote that lives on the seafloor near hydrothermal vents. This organism reduces inorganic carbon to form sugar, and also derives energy from a chemical reaction. This prokaryote is a: A) photoautotroph. B) photoheterotroph. C) chemoheterotroph. D) chemoautotroph 25. Organisms belonging to the Bacteria branch of the Tree of Life can demonstrate which of the following processes? A) anoxygenic photosynthesis B) oxygenic photosynthesis C) aerobic and anaerobic respiration D) fermentationn E) all of the above

Explanation / Answer

20. Buying vegetables at local farmer. These vegetables are seasonal and take up 50% less resources or energy than the ones that have travelled overseas .

21. With incrrase in temperature plants flower earlier than usual. A is the correct answer

22. A decrease in earth's temperature. If anything the earth's temperature has risen due to green house effect. A IS THE CORRECT ANSWER

23. Chemoautotrophs and chemohetertrophs

Chemoautotrophs are plants they fix carbon dioxide to form sugars whereas chemohetertrophs are humans.

24. Chemoautotroph

25. All of the above