1. Place the trophic levels in order of greatest amount of energy available (bottom of the pyramid/list) to least amount of energy available (top of the pyramid/list).
WB : Tertiary Consumers, Primary Consumers, Apex predators/Quaternary Consumers, Secondary Consumers, Producers/Autotrophs
2. The diagram shows the carbon cycle. Which of the following processes is the one most impacted by humans burning fossil fuels?
A combustion
B decomposition**
C photosynthesis
D respiration
3. The flippleflopper variety of wombats has 42 chromosomes in its body (somatic) cells. How many chromosomes do you expect to see after meiosis (without any errors) in the resulting reproductive cells?
A 84
B 42
C 21**
D Impossible to determine based on the given information.
4. Plants use CO2 in the process of ___ to make ___ and oxygen. Animals use oxygen in the process of ___ and make more CO2. The ___ is the main regulator of CO2 in the atmosphere because CO2 dissolves easily in it. In the past, huge deposits of carbon were stored as dead plants and animals ___ . Today these deposits are burned as fossil fuels, which include ___ , ___ , and ___ . More CO2 is released in the atmosphere today than in the past because of ___ . Too much CO2 in the atmosphere may be responsible for the ___ effect.
WB: decayed, coal, natural gas, greenhouse, photosynthesis, glucose, oil, burning of fossil fuels, ocean, volcanoes, respiration
5. According to the diagram above, an area of the ocean has ___ producers. These producers are surface dwelling ___ that make their own food through ___ . How can 5000 ___ only support half a tuna? Energy gets used up at each level and only ___ is able to move to the next level as it is used to maintain life or given off as heat waste.
WB : autotrophs, 50%, 10%, producers, butterscotch, photosynthesis, cellular respiration, consumers, 5000
6. Which of the following is an example of how biogeochemical cycles, including the carbon cycle, are important to sustaining life?
A Oxygen atoms are converted into carbon atoms during cellular respiration.
B The atoms in water molecules are always destroyed during a drought.
C Dead organisms and waste is recycled into usable nutrients for others or into sinks. **
D New carbon atoms are created during the carbon cycle.
7. A cell in the leaf of a green plant performs both photosynthesis and cellular respiration, often at the same time. Which statement best describes how these processes are related to each other?
A Products of one process are used as some of the reactants for the other process.
B Thermal energy from one process is used as the primary energy source for the other process.
C Both processes produce carbon dioxide. **
D Both processes require energy directly from the Sun.
8. Is the trait shown in the pedigree below dominant or recessive, and why?
A Dominant, because you see the trait again in the 4th generation shown.
B Recessive, because you cannot have offspring with a dominant trait when neither parent has the trait.
C Recessive, since female in the first generation has the trait. **
D Not enough information to tell
9. Photoautotrophs are able to convert inorganic materials into glucose.
In order to do this, they require which of the following:
A chlorophyll or other light absorbing pigment.
B a source of carbon dioxide and water.
C an energy source, such as the sun.
D all of the above. **