Food Chains and Webs-"What's for dinner?" - VroomStudy (2023)

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1. What travels through a food chain or web?

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Energy

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2. What is the ultimate energy for all life on Earth?

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Sun

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3. Food chains start with what?

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Primary producer

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4. The 1st organism in a food chain must always be what type of organism?

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Autotrophs or primary producer

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5. Name 2 food making processes.

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Photosythesis/chemosynthesis

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6. Where do chemosynthetic bacteria get their energy?

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boiling hot deep sea vents

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7. Define herbivore.

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organisms that eat producers

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8. Herbivores are also called _________________.

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primary consumers

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9. What are animals called that feed on herbivores?

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Secondary consumers

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10. Secondary consumers are eaten by larger _____________.

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predators

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11. _____________ consumers eat secondary consumers.

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Tertiary

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12. Make a food chain with a producer and 3 consumers.

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Flower---Butterfly---Frog---Snake---Hawk

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1. What is used to indicate the flow of energy in a food chain or web?

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Arrows

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2. What happens to energy as we move from step to step in a chain or web?

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Energy is lost

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3. Define food web.

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A network of many food chains

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4. What is meant by trophic levels?

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The position it holds in the food chain

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5. Define autotroph.

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Organisms that make their own food from sunlight and/or chemical energy from deep sea vents

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6. The 1st trophic level consists of _____________ consumers called _____________.

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primary, autotrophs

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7. Name the 2nd trophic level (both names).

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Primary consumers, herbivores

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8. Secondary consumers may be _____________ eating meat or __________ that eat both plants and animals.

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carnivores, omnivores

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9. What is the 3rd trophic level called?

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Secondary consumers

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10. What is the 4th trophic level called?

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Tertiary consumers

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11. At the 5th trophic level would be _________ consumers that eat __________ consumers.

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Quaternary, tertiary

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12. Give an example of 3 detrivores. On what do they feed?

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vultures, worms, and crabs

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13. What organism feeds on dead plants and animals and helps recycle them?

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Decomposers

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14. Both __________ and ____________ act as decomposers.

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bacteria and fungi

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15. Can and organism fill more than one trophic level---yes or no? Give an example.

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yes, bears

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1. In food chains and webs, what trophic level must you have more of that others?

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more autotrophs than heterotrophs

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2. Each trophic level has how much LESS energy?

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10%

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3. What may happen if a species goes extinct?

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Effect entire chain of other species and have unpredictable consequences

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1. What do the arrows in a food chain represent?

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Flow of energy

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2. A food chain starts with an _________________ source?

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primary energy

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3.Organisms that make their own food are called _________________ or ___________________.

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primary producers, autotrophs

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4. Organisms that eat plants are called _________________ or ___________________.

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primary consumers, herbivores

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5. An animal with no natural enemies is a ________________.

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Quaternary consumer