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| Which of the following is the MOST species-rich terrestrial biome? |
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Definition
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| “Food chains are an accurate representations of energy flow through an ecosystem.” This statement is: |
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Definition
| alse; real ecosystems are much more complex than simplified food chains. |
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Definition
| are never found in the first trophic level. |
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Term
| When the sun is low in the sky, the amount of solar radiation received at the spot where the sun is observed: |
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Definition
| is lower than when the sun is high in the sky because the same amount of solar radiation is being spread over a larger area. |
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| Terrestrial primary production is highest _____; marine primary production is highest _____. |
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Definition
| near the equator; along coasts |
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Term
| Even though there is a carbon cycle, it now appears that carbon dioxide levels are rising around the world. Which of the following best explains why this is true? |
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Definition
| he burning of fossil fuels releases more carbon dioxide into the atmosphere. |
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Term
| Organisms play a significant role in: |
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Definition
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Term
| Without ocean currents such as the Gulf Stream, the climate of the UK would: |
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Definition
| be similar to that of Scandinavia. |
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Term
| _____ and _____ are the major factors that determine climate. |
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Definition
| Temperature; precipitation |
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Term
| In what way(s) does the phosphorus cycle significantly differ from the nitrogen cycle? |
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Definition
| Unlike nitrogen, the phosphorus cycle lacks a significant atmospheric component. |
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Term
| Over the last 200 years, the amount of CO2 in the air has: |
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Definition
| Both a) and b) are correct. |
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Term
| Most of the deserts of the world occur: |
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Definition
| at 30 degrees North and South latitude. |
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Term
| Uneven heating of the earth's spherical surface by the sun and the tilt of the earth on its axis combine to affect which of the following: |
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Definition
| latitudinal variation in climate |
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Term
| he distribution of terrestrial biomes across the globe corresponds MOST to which of the following? |
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Definition
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Term
| The beak sizes and shapes of Darwin's finches are correlated with which environmental feature? |
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Definition
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Term
| You plant one acorn in a forest and a second acorn in an open field. After twenty years, the oak tree in the forest is tall and thin, while the oak tree in the field is shorter, thicker, and has a broad crown. What is the most likely explanation for this outcome? |
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Definition
| The oak tree in the forest had to compete for light with the neighboring trees. |
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Term
| In the interaction of two types of organisms in a habitat, one organism benefits from its interaction from the other but the other organism suffers. What is the name for this interaction? |
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Definition
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Term
| In a commensal relationship: |
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Definition
| ne species benefits while the other neither benefits nor is harmed. |
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Definition
| describes the lower average rainfall that occurs on the backside of mountains. |
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Term
| The largest reservoir of phosphorus in most ecosystems is: |
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Definition
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