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27 Cards in this Set
- Front
- Back
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What is the ultimate source of energy for an ecosystem? |
A. sun b. food c. water d. oxygen |
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Put an X beside all of the non-living parts of an ecosystem. |
X Air Gras X Soil X Sunlight Mushroom X Water X Temperature Bush Earthworm |
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In this diagram, Which organism would best fit the ? Plant -> ? -> fish -> bird -> alligator |
a. shark b. hawk c. seaweed d. insect |
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Put an X beside all of the consumers in the food chain. |
Plant X Caterpillar X Frog X Snake Grass Sun |
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Put an X beside all of the producers in the food chain. |
X Plant Caterpillar Frog Snake X Grass Sun |
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How do carnivores obtain energy? |
A. they eat plants b. they eat animals c. they eat animals and plants d. they make their own food |
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What role do decomposers play in ecosystems? |
a. they break down nitrogen and oxygen b. they break down waste and dead matter c. they provide nutrients for carnivores to make energy d. they provide nutrients for omnivores to make energy |
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Even carnivores depend on producers because |
a. carnivores eat only other animals b. carnivores eat both plants and other animals c. carnivores eat animals that eat plants d. carnivores eat producers |
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Explain why a zebra is a herbivore and a lion is a carnivore. |
Zebra eat grass and herbivore only eats producers. Lions eat meat and carnivores only eat meat. |
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Are humans herbivores, carnivores or omnivores? Explain your answer. |
Humans are omnivores because they eat plants (producers) and consumers. |
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If grass was the only producer and it disappeared, what would happen to the mice, snakes and hawks in this ecosystem? |
a. the mice snakes and hawks would survive b. the mice would die off and the snakes and hawks would continue to survive c. the mice would continue to survive and the snakes and hawks would die off d. the mice, snakes and hawks would die off |
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What do plants need to make food? X all that apply |
oxygen X sunlight X carbon dioxide nutrients X water |
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What is the best explanation for a decrease in a population of wolves in an area? |
a. the amount of food decreases b. the amount of space increases c. the amount of food increases d. the amount of competition increases |
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The relationship between an owl and a mouse is an example of |
a. competition b. symbiosis c. predator and prey d. producer and consumer |
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A long term relationship between two different organisms is called |
a.. competition' b. conservation c. resources d. symbiosis |
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What would happen to the snakes and owls if the mice disappeared? |
The snake could only eat frogs, so the frog population would decrease. The owl would eat snakes and rabbits so the rabbit population would go down. The snake population would go down for two reasons. They would run out of food (frogs) and they would get eaten by the owls. |
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How is a food chain related to a food web? |
A food web is made up of many food chains. |
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Explain what might happen to the populations of birds and frogs if chemicals were sprayed and all of the insects died? |
The birds and frogs population would decrease and die out if the insects died because that is what they eat and they wouldn't have any food. |
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What type of symbiosis is a fish and a sea anemone? Explain |
Mutualism is the type of symbiosis. Both organisms are happy. The fish is protected and the sea anemone gets food because the fish attracts other fish. |
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What type of symbiosis is a horse and birds? Explain |
Commensalism is the type of symbiosis. One organism is happy and the other doesn't care. The horse doesn't care but the birds get food. |
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What type of symbiosis is a dog and flea? Explain |
Parasitism is the type of symbiosis. One organism is happy and one is harmed. The dog is harmed and the flea gets a lunch-food. |
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Draw a food web with these plants and animals. Use at least 5 organisms. |
Organism Hawks Foxes Squirrels Rabbits
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Nonnative plant and animal populations can grow rapidly in a new ecosystem. Explain why this would happen. |
There are no consumers that eat the non-native populations so there is nothing to slow the growth. |
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Make a food web with the following organisms. plant, snake, mouse, rabbit, fox and worm Include the names and arrows to trace the energy flow. |
Draw here. |
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From your food web you drew. List the producers |
plants |
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From your food web you drew. List the consumers. |
snake, mouse, rabbit, fox
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From you food web you drew. List the decomposers. |
worm |
