Answer the following question given this paragraph: Fermented Foods. Fermentation is a type of respiration that doesn't use oxygen. Fermentation by bacteria is used in brewing and baking. It is also used to make the foods pictured here. Q: What type of respiration does not use oxygen? Choices: - condensation - oxidation - cellular - fermentation A:
fermentation
Answer the following question given this paragraph: Figure 18.12 The northern spotted owl and the Mexican spotted owl inhabit geographically separate locations with different climates and ecosystems. The owl is an example of allopatric speciation. (credit "northern spotted owl": modification of work by John and Karen Hollingsworth; credit "Mexican spotted owl": modification of work by Bill Radke). Q: The northern spotted owl and the mexican spotted owl inhabit geographically separate locations with different climates and ecosystems. the owl is an example of? Choices: - parallel evolution - biodiversity - symbiotic species - allopatric speciation A:
allopatric speciation
Q: Answer the following question given this paragraph: Prokaryotes and the Nitrogen Cycle Nitrogen is a very important element for life because it is part of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds to ammonia, ammonium ions, nitrate, nitrite, and nitrogen gas by myriad processes, many of which are carried out only by prokaryotes. As illustrated in Figure 22.19, prokaryotes are key to the nitrogen cycle. The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen from the air, but this nitrogen is not usable by plants, which are primary producers. Gaseous nitrogen is transformed, or "fixed" into more readily available forms such as ammonia through the process of nitrogen fixation. Ammonia can be used by plants or converted to other forms. Another source of ammonia is ammonification, the process by which ammonia is released during the decomposition of nitrogen-containing organic compounds. Ammonia released to the atmosphere, however, represents only 15 percent of the total nitrogen released; the rest is as N2 and N2O. Ammonia is catabolized anaerobically by some prokaryotes, yielding N2 as the final product. Nitrification is the conversion of ammonium to nitrite and nitrate. Nitrification in soils is carried out by bacteria belonging to the genera Nitrosomas, Nitrobacter, and Nitrospira. The bacteria performs the reverse process, the reduction of nitrate from the soils to gaseous compounds such as N2O, NO, and N2, a process called denitrification. Q: Prokaryotes and the nitrogen cycle nitrogen is a very important element for life because it is part of proteins and this? Choices: - nuclear forces - nerve cells - molecules - nucleic acids A:
A: nucleic acids
Question: Answer the following question given this paragraph: Figure 39.14 (a) Birds have a flow-through respiratory system in which air flows unidirectionally from the posterior sacs into the lungs, then into the anterior air sacs. The air sacs connect to openings in hollow bones. (b) Dinosaurs, from which birds descended, have similar hollow bones and are believed to have had a similar respiratory system. (credit b: modification of work by Zina Deretsky, National Science Foundation). Q: Birds have a flow-through respiratory system in which air flows unidirectionally from the posterior sacs into the lungs, then into these? Choices: - posterior bronchi - gills - alveoli - anterior air sacs A:
Answer: anterior air sacs
*Question*
Answer the following question given this paragraph: Insects have six legs and a pair of antennae for sensing chemicals. They also have several eyes and specialized mouthparts for feeding. Q: Insect's antennae are useful for sensing what? Choices: - contaminants - microorganisms - sunlight - chemicals A:
**Answer**
chemicals
(Q).
Answer the following question given this paragraph: Oil spills are another source of ocean pollution. To get at oil buried beneath the seafloor, oil rigs are built in the oceans. These rigs pump oil from beneath the ocean floor. Huge ocean tankers carry oil around the world. If something goes wrong with a rig on a tanker, millions of barrels of oil may end up in the water. The oil may coat and kill ocean animals. Some of the oil will wash ashore. This oil may destroy coastal wetlands and ruin beaches. Figure below shows an oil spill on a beach. The oil washed ashore after a deadly oil rig explosion in the Gulf of Mexico in 2010. Q: A recent deadly explosion in the gulf of mexico exemplified what source of ocean pollution? Choices: - greenhouse gases - fracking disaster - algal bloom - oil spill A:
(A).
oil spill