Exam 2 Bio 171 Quiz questions review Questions and Answers 100% Correct

Exam 2 Bio 171 Quiz questions review Questions and Answers 100% Correct If a defensive compound is always present in an organism, then it MUST be a constitutive defense. FALSE Which are characteristics of hexapods that are NOT common to all arthropods? Choose all correct answers. ecdysis jointed legs exoskeleton 3 main body parts 6 legs hexapods SD traits -3 main body parts -6 legs anthropods -jointed legs -ecdysis -exoskeleton Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:05 / 0:15 Full screen Brainpower Read More Monarch butterfly caterpillars are herbivores of common milkweed. Milkweed produces a sticky latex sap and a toxin in its leaves. How is the interaction between the caterpillars and milkweed characterized? - for milkweed ... eaten + for butterfly ... new defense Eukaryotic cells with chloroplasts arose from an ancient symbiosis between: heterotrophic eukaryotes and cyanobacteria angiosperms or gymnosperms...cant be both Escherichia coli bacteria in your colon are best categorized as ____________. chemohetertrophs Carbon source: organic C source (sugars, proteins, lipids, nucleic acids)Energy Source: inorganic or organic molecules Which of the following is the best description of algae? a photosynthetic protist Which of the following could initiate a trophic cascade in a terrestrial community? Introduction of a tertiary consumer to a community that previously just had primary and secondary consumers Heat energy that comes from organisms in the top trophic level is released to the atmosphere and eventually goes out to space TRUE The phytoplankton in a food web include cyanobacteria as well as unicellular and multicellular green and brown algae, all of which are photosynthetic. True or false? Ancestors of all the phytoplankton species in this food web underwent endosymbiosis, which resulted in chloroplasts inside these organisms' cells. FALSE Which of the following is considered a carbon reservoir? Redwood National Park the Atlantic Ocean the Great Barrier Reef all the organisms on Earth true or false: Net primary production (NPP) is always greater than the amount of production lost due to cellular respiration FALSE true or false: Gross primary production (GPP) is always greater than net primary production (NPP) TRUE What would happen in an ecosystem if decomposer populations went extinct? There would be more nitrogen in organic forms than in inorganic forms GPP and NPP would both decrease Which of the following are NOT geological processes that drive the long-term carbon cycle? subduction volcanism plate tectonics chemical weathering photosynthesis and respiration photosynthesis and respiration An abundance of nitrogen (N) and phosphorus (P) in an aquatic environment leads to __________ levels of dissolved oxygen due to __________. low high rates of cellular respiration by decomposer populations pool measured in? flux measured in? Pools are measured in units of mass fluxes are measured in units of mass per time What is the evidence that human activity is causing increased atmospheric CO2 levels? isotopic composition of atmospheric CO2 can be measured and shows that CO2 being added to the air comes from combustion of fossil fuels very high rates of primary production in the oceans happen ____, while the highest rates of primary production on land happen______. coastal areas around the equator