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Chapter 1
Section 2: Living Things Need Energy Section Study Questions
| Question | Answer |
|---|---|
| Herbivores, Carnivores, and scavengers are all examples of...? | consumers |
| Why are decomposers important in an ecosystem? | they remove energy from dead organisms and break them down to be reused in nature |
| How do producers make their own food? | They use sunlight to go through photosynthesis to create glucose (sugar) for themselves. |
| How much energy do primary consumers get from producers such as plants? | 10% |
| What organism eats a primary consumer? | secondary consumer |
| What organism eats a secondary consumer? | tertiary consumer |
| Is a scavenger a producer, consumer, or decomposer? | consumer |
| Two examples of decomposers include... | bacteria, fungi |
| An herbivore is an organism that eats... | only plants |
| An omnivore is an organism that eats... | plants and animals |
| A carnivore is an organism that eats... | animals/meat |
| What is the difference between a food chain and a food web? | a food chain is how energy in food flows from one organism to another while a food chain is a system of of many connected food chains in an ecosystem |
| Which one of these terms describes what is at the top of the food chain? producer, secondary consumer, tertiary consumer, secondary consumer | tertiary consumer |
| What is at the beginning of the food pyramid? | producers |
| Who transfers more energy, an organism at the bottom of the food pyramid or at the top of the pyramid? | bottom |
| What are the two main food webs in the world? | land and aquatic |
| What happens to energy that is not used by an organism? | It becomes stored energy |
| Why are simple food chains rare? | organisms eat more than one type of food |
| Can energy move back and forth or only in a one way direction? | one way direction |
| Where do you find the largest amount of organisms on the energy pyramid? | at the bottom |
| Is energy increased or lost the higher up on the energy pyramid the organism goes? | energy is lost |
| How can a single species change the flow of energy in an ecosystem? | when one organism is lost or extinct, that organism is no longer a food source for another organism which changes the entire food chain dynamic in an ecosystem |
| Can organisms be part of more than one food chain? | Yes |
| In what order would you put these organisms in a food chain? hawk, snake, grass, mouse | grass, mouse, snake, hawk |
| In what order would you put these organisms in a food chain? fish, plankton, shark, dolphin | plankton, fish, dolphin, shark |
| In what order would you put these organisms in a food chain? hyena, antelope, cougar, lion | antelope, cougar, hyena, lion |
| Can there be more than four organisms in a food chain? | Yes |
Created by:
mnance
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