Term
| What is the difference between producer organisms and consumer organisms? |
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Definition
| Producers manufacture their own food through photosynthesis. Consumers cannot manufacture their own food and must obtain it from other sources. |
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Term
| Distinguish between an annual and a perennial plant. |
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Definition
| Annual plants sprout from seed each year nad die in the winter. (They live only one growing season.) Perennial plants, which also produce seed, survive through the winter. |
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Term
| What is the difference between an animal that hibernates and one that sleeps through the winter? |
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Definition
| If an animal is hibernating, its body temperature and metabolism drop, it becomes inactive, and it is difficult to wake. If an animal is just sleeping, its body temperature remains near normal and it can awaken easily. |
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Term
| If a habitat lacks one of the basic needs of a population or organisms, what are three possible results for the population? |
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Definition
| The population may adjust to the conditions, move to another area, or die. |
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Term
Which of the following cannot be an ecosystem?
-a fox chasing a rabbit
-David's aquarium
-a mountain valley
-Turner's Pond |
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Definition
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Term
Which of the following is not part of the biotic community in a lake?
-fish
-water
-bacteria in the mud
-aquatic plants |
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Definition
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Term
| The area where a white-tailed deer lives is its... |
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Definition
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Term
Which of the following is the best example of a niche?
-a fox chasing and then eating a rabbit
-sunlight illuminating a forest floor
-fog rising from a cold mountain lake
-a deer standing motionless at the forest's edge |
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Definition
| a fox chasing and then eating a rabbit |
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Term
An example of an artificial ecosystem is
-Sumter National Forest
-Lake Huron
-Jenny's garden
-the Missouri River |
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Definition
|
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Term
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Definition
| decaying plant and animal material in the soil |
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Term
| In the water cycle, water travels from... |
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Definition
| evaporation, to clouds, to precipitation, to runoff water, to groundwater |
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Term
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Definition
| how ecosystems change as time passes |
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Term
| Pioneer species are those populations that are... |
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Definition
| found early in succession |
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Term
| The term population refers to... |
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Definition
| members of one species of organism that live in a particular ecosystem |
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Term
| All the brook trout living in Sideling Hill Creek are... |
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Definition
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Term
| Organisms that are unable to manufacture theirown foods are called... |
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Definition
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Term
| Noctural organisms are active... |
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Definition
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Term
| An organism that is active during the day is... |
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Definition
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Term
| Plants that survive the winder only as seeds... |
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Definition
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Term
| Organisms that live in an area in the early stages of succession are called ________ species. |
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Definition
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Term
| In nineteenth-century Canada the lynx population was a(n) _________ factor for the snowshoe rabbit population. |
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Definition
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Term
Yes or No
All birds migrate. |
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Definition
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Term
Yes or No
Insects are very rare in tundra regions because of the extreme temperatures. |
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Definition
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Term
Yes or No
There is no competition among plants because they lack the ability to think and move about. |
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Definition
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Term
Yes or No
In an ant colony, all ants share equally in all tasks. |
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Definition
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Term
Yes or No
One benefit of living in an animal society is defense against predators. |
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Definition
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Term
Yes or No
Animal societies benefit from living together because the group condition helps with protection and obtaining food. |
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Definition
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Term
Yes or No
An omnivore can fit into more than one level of an ecological puramid. |
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Definition
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Term
Yes or No
Only about 10% of the energy is successfully passed on to each successive level in an ecological pyramid. |
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Definition
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Term
Yes or No
The second level of an ecological pyramid is made up of herbivores. |
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Definition
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Term
Yes or No
Plants are frequently found at the tope of an ecological pyramid. |
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Definition
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Term
Yes or No
A food web gives a more accurate picture of what happens in an ecosystem than a food chain does. |
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Definition
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Term
Yes or No
Energy from the sun is stored by plants in the form of sygar. |
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Definition
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Term
| Other than to the host, the death of the host is most distressing to... |
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Definition
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Term
Which of the following is not recycled in an ecosystem?
-matter
-water
-carbon
-energy |
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Definition
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Term
| Mimicry occurs when an organism... |
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Definition
|
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Term
|
Definition
| helps predators and prey hide from each other |
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Term
| A relationship between two organisms that is beneficial to both is... |
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Definition
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Term
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Definition
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Term
For which of the following might organisms compete?
-mates
-rank in a social group
-water
-all of the above |
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Definition
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Term
| The struggle between organisms for some essential factor in the environment that is in short supply is called... |
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Definition
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Term
| What do ants, bees, and termites have in common? |
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Definition
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Term
Which of the following is not a benefit of living in an animal society?
-safety in numbers
-group hunting
-education
-isolation |
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Definition
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Term
| An organism that eats both plants and animals is called... |
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Definition
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Term
| The most energy is found at... |
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Definition
| the bottom of an ecological pyramid |
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Term
Which of the following are usually decomposers?
-parasites
-plants
-bacteria and fungi
-all of the above |
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Definition
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|
Term
Which of the following is a natural food chain?
-corn→mouse→snake→eagle
-corn→bird→grasshopper→snake
-corn→grasshopper→bird→mouse
-man→corn→grasshopper→mouse |
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Definition
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Term
| What is the one outstanding characteristic of most desert organisms? |
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Definition
| The ability to survive long periods of time without water characterizes most desert organisms. |
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Term
| Distinguish between commensalism and mutualism. |
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Definition
| In commensalism only one of the two species involved benefits from the relationship. In mutualism both benefit. |
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Term
| Why would it not be helpful for an internal parasite to kill its host? |
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Definition
| The parasite would lose its home and would probably die. |
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Term
| How is the parasite-host relationship different from the predator-prey relationship? |
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Definition
| Most parasites do not kill their host, at least not immediately. |
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Term
| Why is a food web a better model than a food chain? |
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Definition
| It is a more accurate picture of what happens in an ecosystem. It combines all the interrelated food chains. |
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