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MASTERINGBIOFINAL
| Question | Answer |
|---|---|
| A human eats a deer | Predation |
| Humans and sharks both eat fish | Competition |
| Humans who have pets tend to be healthier than humans who do not have pets | Mutualism |
| An egret eats insects stirred up by grazing animals | Commensalism |
| In an ecosystem, phytoplankton are _____. | Producers |
| An earthworm that feeds on the remains of plants and animals is acting as a _____. | Detritivore |
| When a human eats a steak, the human is acting as a _____. | Secondary consumer |
| A cow eating grass is an example of a _____. | Primary consumer |
| A human who just ate a hamburger is eaten by a shark while swimming. The shark is acting as a _____. | Tertiary consumer |
| Starting point for primary succession | A surface exposed by a retreating glacier |
| The farther an island is from the mainland | The fewer the number of species found on the island |
| Why is a new island more hospitable to colonizers than an older island is? | The intensity of both competition and predation is less on the newer island |
| What is the relationship between colonizing success and the number of species already established on an island? | As the number of established species on an island increases, colonizing success also decreases. |
| The number of species on an island remains relatively constant when _____. | the rate of successful colonization equals the extinction rate |
| Where do plants get the energy to make organic molecules? | Light |
| Where do plants get the carbon they use to make organic molecules? | Carbon dioxide |
| _____ are secondary consumers. | Carnivores |
| Approximately _____% of the energy at one trophic level is passed on to the next highest trophic level | 5-10 |
| 10,000 kcal of producer could support approximately _____ kcal of tertiary consumer. | 10 |
| What name is given to the process by which detritivores return carbon to the atmosphere? | Decomposition |
| _____ removed carbon from the Earth's atmosphere. | Algae |
| Detritus is composed of _____. | Dead organic matter and excreted wastes |
| Nitrifying bacteria convert _____ to _____. | Ammonium ... nitrites |
| _____ removes nitrogen from the atmosphere. | Nitrogen fixation |
| Two major sources of nitrate pollution in rivers | Animal wastes and fertilizers |
| Aquatic nitrate pollution can result in _____. | an algal bloom that, when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish |
| What percent of the plant species found on Madagascar are unique to that island? | 80 |
| The human population of Madagascar doubles about every _____ years. | 25 |
| Much of the original forest cover on Madagascar has been destroyed primarily as a result of _____. | burning for agricultural purposes |
| One of the most severe consequences of habitat degradation is the _____ of a population. | Fragmentation |
| A sink habitat is where a subpopulation's death rate is _____. | Greater than its reproductive rate |
| Fertilizer runoff can result in the _____ of a lake. | eutrophication |
| Most biodiversity hot spots are in the _____. | Tropics |
| _____ is the increase in pesticide concentration as the pesticides pass up a food chain. | biological magnification |
Created by:
vmweatherly