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Science
Science Energy and Ecosystems
Question | Answer |
---|---|
What is the process by which plants make food? | photosynthesis |
What is a community or organisms and the environment in which they live? | ecosystem |
What type of animal eats only producers? | herbivores |
What is an animal that eats plants or other animals? | consumers |
What is the transfer of energy between organisms in an ecosystem? | food chain |
What is an organism that breaks down the remains of dead plants and animals? | decomposer |
What is a diagram that shows how much food energy is passed to each level in a food chain? | energy pyramid |
What kind of organism comes last in every food chain? | decomposer |
Suppose a colony of ants eats a plant. How much of the plant's energy passes to the ants? | 10 percent |
Which process is NOT part of the nitrogen cycle? Bacteria that live on some plant roots fix nitrogen gas Plants release nitrogen compounds during transpiration Bacteria breaks down animal wastes and dead organisms Lightning produces nitrogen compounds that dissolve in rain | plants release nitrogen compounds during transpiration. |
Which substance enables a plant to use the sun's energy to make food? | chlorophyll |
Which is a product of photosynthesis? Carbon dioxide Nitrogen Oxygen Pigment | oxygen |
Which term is correctly described? Herbivore: second-level consumer Omnivore: producer Carnivore: consumer Deconsumer: first-level consumer | carnivore: consumer |
Which ordering of these organisms makes a food chain? Grass>snake>locus> owl Owl>snake>grass>locus Snake>locust>grass>owl Grass>locust>snake>owl | grass>locust>snake>owl |
You found an unhealthy plant in a dark room and put it in a sunny window. What will happen? | photosynthesis should start and the plant will make its food |
In a grassland ecosystem, how does the energy from the sun get to the lion? | sun's energy>grass>zebra>lion |
In a grassland ecosystem, what are the producers? | the grass produces food from the sun |
As you move up the energy pyramid, the number of organism decreases. Why? | only 10 percent of the energy is passed to the next level |