Ecosystems
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A system of several overlapping food chains.
Food Web
A consumer that eats only animals.
Carnivore
A consumer that eats plants and animals.
Omnivore
How does a consumer get its energy?
By eating plants and/or animals
A consumer that eats only plants.
An organism that eats dead plants or animals and breaks down to put nutrients in the soil
Decomposer
Based on the food chain what is the secondary consumer?
berries -> rabbit -> fox -> wolf -> mushroom
fox
If water were to disappear in an ecosystem, what would be the most likely effect on that ecosystem?
Both plants and animals would not survive
Organisms that make up the non-living part of an ecosystem.
Abiotic factor
The arrows in a food chain or web represents what?
The flow of energy
The role or job that an organism has in an ecosystem.
Niche
Organisms that make up the living part of an ecosystem.
Biotic Factors
A characteristic that helps an organism survive in it environment and reproduce.
Adaptation
Which type of animal would most likely be found living in a polar region?
O one that spends most of its life in trees
O one that has a thick fur and extra fat
O one that can go long periods without water
O one that must be adapted to the water environment
O one that has a thick fur and extra fat
__________________ are forests where the seasons change. The leaves change color in the autumn and fall off in the winter. Summers are warm and winters are cold.
deciduous forest
Which negative environmental impact is caused by overgrazing by animal herds?
O spread of animal diseases
O increase in use of pesticides
O erosion of top soil
O pollution of groundwater
O erosion of top soil
The three main groups that can be found in all ecosystems are the producers, consumers, and decomposers. Which choice gives an example of an organism from each group?
A. bacteria, grass, flower
B. clover, rabbit, mushroom
C. fungi, mushroom, flower
D. cow, eagle, mouse
B. clover, rabbit, mushroom
Which feature of a grassland ecosystem makes it different than a forest ecosystem?
O It has more fertile soil.
O It receives a large amount of rainfall.
O Its land is covered with snow during winter.
O Its animals like the black bear and the red fox are native to the ecosystem
O It has more fertile soil.
In a food pyramid, what level has the least amount of energy?
the top level
Which action should have a positive effect on a woodland ecosystem?
O planting native species
O building houses
O building farms
O planting invasive species
O planting native species
Organisms impact their environments. Which is a harmful way organisms impact the environment?
O Herd animals fertilize the fields where they graze helping new plants grow.
O Beavers create pond environments where new plants and animals can live
O Kudzu plants overgrow other plants and trees causing them to die out.
O Humans have created "greenways" where people and animals can be in a natural river environment.
O Kudzu plants overgrow other plants and trees causing them to die out.
Lightning strikes during a thunderstorm sometimes have enough energy to start forest fires. Which event would most likely occur as a result of a fire in a forest ecosystem?
O Populations of organisms would increase because of an increase in food and shelter.
O The amount of shelter available to the organisms would remain unchanged.
O The amount of food resources available to the organisms would increase.
O Populations of organisms would decrease because of a decrease in food and shelter.
O Populations of organisms would decrease because of a decrease in food and shelter.
Which arrangement shows a food chain in the correct order of energy flow?
O raccoon -› frog -› grasshopper -> grass
O grasshopper -› grass -› frog -› raccoon
O grass -› grasshopper -› raccoon - frog
O grass › grasshopper › frog › raccoon
O grass › grasshopper › frog › raccoon
The horned owl prefers a forest habitat filled with oak, pine, and hickory trees. Which statement most likely describes what would happen to the horned owl population if all the pine trees were cut down within their habitat?
O The horned owl population would remain constant.
O The horned owl population would decrease.
O The horned owl population would increase.
O The horned owl population would become extinct.
O The horned owl population would decrease.
A farmer's oak forest is infected by gypsy moths. The larvae of the moth feed heavily on the leaves of the oak trees. What will most likely happen if the farmer traps large amounts of the male gypsy moths in fly nets?
O The female gypsy moths will fly to another oak forest.
O The female gypsy moths will start feeding on oak leaves.
O The female gypsy moths will attract males of another species.
O The female gypsy moths will have fewer mates resulting in less offspring.
O The female gypsy moths will have fewer mates resulting in less offspring.