|
|
_____ are secondary consumers. (Activity 54A)
|
| Producers |
| Herbivores |
| Plants |
| Cows |
| Carnivores |
|
|
|
Approximately _____% of the energy at one trophic level is passed on to the next highest trophic level. (Activity 54A)
|
| 0–5 |
| 5–10 |
| 10–15 |
| 15–20 |
| 90–100 |
|
|
|
10,000 kcal of producer could support approximately _____ kcal of tertiary consumer. (Activity 54A)
|
| 1,000 |
| 100 |
| 10 |
| 1 |
| 0 |
|
|
|
Where do plants get the energy to make organic molecules? (Activity 54B)
|
| minerals |
| glucose |
| vitamins |
| light |
| water |
|
|
|
Which of these is NOT an organic molecule? (Activity 54B)
|
| carbohydrates |
| minerals |
| proteins |
| glucose |
| lipids |
|
|
|
Where do plants get the carbon they use to make organic molecules? (Activity 54B)
|
| glucose |
| oxygen |
| water |
| starch |
| carbon dioxide |
|
|
|
What name is given to the process by which detritivores return carbon to the atmosphere? (Activity 54C)
|
| burning |
| predation |
| photosynthesis |
| predation and photosynthesis |
| decomposition |
|
|
|
Which of these removes carbon from the atmosphere? (Activity 54C)
|
| logging trees |
| rabbits |
| burning fossil fuels, such as oil |
| bobcats |
| algae |
|
|
|
Detritus is composed of _____. (Activity 54C)
|
| detritivores |
| dead organic matter |
| inorganic minerals |
| excreted wastes |
| dead organic matter and excreted wastes |
|
|
|
Nitrifying bacteria convert _____ to _____. (Activity 54D)
|
| nitrogen gas ... ammonium |
| nitrogen gas ... nitrates |
| ammonium ... nitrites |
| nitrates ... nitrogen gas |
| ammonium ... nitrogen gas |
|
|
|
_____ removes nitrogen from the atmosphere. (Activity 54D)
|
| Denitrification |
| Nitrification |
| Mineralization |
| Nitrogen fixation |
| Assimilation |
|
|
|
Which of these are the two major sources of nitrate pollution in rivers? (Activity 54E)
|
| the burning of fossil fuels by factories and cars |
| animal wastes and the burning of fossil fuels by cars |
| animal wastes and fertilizers |
| fertilizer runoff and the burning of fossil fuels by cars |
| animal wastes and the burning of fossil fuels by factories |
|
|
|
Aquatic nitrate pollution can result in _____. (Activity 54E)
|
| algal bloom |
| oxygen depletion |
| fish kills |
| hypoxia |
| an algal bloom that, when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish |
|
|
|
Which of these would NOT contribute to a global increase in temperature? (Activity 54F)
|
| deforestation |
| increasing the use of gasoline-burning vehicles |
| increasing the industrial release of carbon dioxide |
| planting trees |
| increasing the amount of animal life on Earth |
|
|
|
Switching from fossil fuels to _____ energy would significantly decrease the release of carbon dioxide into the atmosphere. (Activity 54F)
|
| solar |
| nuclear |
| geothermal |
| solar and geothermal |
| solar, nuclear, and geothermal |
