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Recapping 3.3. Test Friday!! Study workbooks, textbook, vocab, packet 3.3. Trophic level pyramid. When filling in your pyramid, in order to know which trophic level an organism goes in, you need to know WHAT the organism ate, all the way back down the food chain.

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test friday study workbooks textbook vocab packet 3 3

Recapping 3.3

Test Friday!!

Study workbooks, textbook, vocab, packet 3.3

trophic level pyramid
Trophic level pyramid
  • When filling in your pyramid, in order to know which trophic level an organism goes in, you need to know WHAT the organism ate, all the way back down the food chain.
  • Example 1: A bug eats some algae. The bug is a __________ consumer.

(primary)

trophic level pyramid1
Trophic level pyramid
  • Example 2: A fish eats a bug that ate some algae. The fish is a ________________ consumer.

(secondary)

trophic level pyramid2
Trophic level pyramid
  • Example 3: A bird eats a fish that ate a bug that ate some algae. The bird is a ____________ consumer

(tertiary)

trophic level pyramid3
Trophic level pyramid
  • Example 4: A bird eats a bug that ate some algae. The bird is a __________________ consumer.

(secondary)

  • *Some animals can fill in more than 1 trophic level
trophic level pyramid4
Trophic level pyramid
  • Example 5: A bobcat eats a bird that ate a fish that ate a bug that ate some algae. The bobcat is a _________________ consumer.

(quaternary)

review of 3 3 page 2
Review of 3.3 – PAGE 2
  • 1. What travels through a food chain or web?
  • Energy (or biomass)
review of 3 3
Review of 3.3
  • 2. What is the ultimate energy source for all life on Earth?
  • Sunlight (or chemical energy)
review of 3 31
Review of 3.3
  • 3. Food chains start with what?
  • Producers (Autotrophs)
review of 3 32
Review of 3.3
  • 4. The 1st organism in a food chain must always be what type of organism?
  • Primary producers
review of 3 33
Review of 3.3
  • 5. Name 2 food making processes
  • Photosynthesis, chemosynthesis
review of 3 34
Review of 3.3
  • 6. Where do chemosynthetic bacteria get their energy?
  • Chemicals found in hydrothermal vents
review of 3 35
Review of 3.3
  • 7. Define herbivore.
  • Animal that eats only plants or plant products (seeds, leaves, stems, roots)
slide15

9. What are animals called that feed on herbivores?

  • Secondary consumers (can we say if they are omnivores or carnivores?)
slide18

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

  • Grass  Grasshopper  Rat  Snake
review page 4
REVIEW PAGE 4
  • 1. What is used to indicate the flow of energy in a food chain or web?
  • Arrows
slide20

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

  • It is transferred, and some energy is lost
slide21

3. Define food web

  • A network of many food chains
review of 3 36
Review of 3.3
  • 4. What is meant by “trophic levels”?
  • The position an organism holds in a food chain or web
review of 3 37
Review of 3.3
  • 5. Define autotroph
  • Organisms that make their own food from sunlight or chemical energy from deep sea vents
review of 3 38
Review of 3.3
  • 6. The 1st trophic level consists of ____ producers called ____.
  • Primary producers, autotrophs
review of 3 39
Review of 3.3
  • 7. Name the 2nd trophic level (both names)
  • Primary consumers, herbivores
review of 3 310
Review of 3.3
  • 8. Secondary consumers may be ____ eating meat or _____ that eat both plants and animals.
  • Carnivores, omnivores
review of 3 311
Review of 3.3
  • 9. What is the 3rd trophic level called?
  • Secondary consumers
review of 3 312
Review of 3.3
  • 10. What is the 4th trophic level called?
  • Tertiary consumers
review of 3 313
Review of 3.3
  • 11. At the 5th trophic level would be _____ consumers that eat _____ consumers.
  • Quaternary, tertiary
review of 3 314
Review of 3.3
  • 12. Give an example of 3 detritivores. On what do they feed?
  • Worms, shrimp, snails, mites
  • Feed on already decayed organisms
review of 3 315
Review of 3.3
  • 13. What organism feeds on dead plants and animals and helps recycle them?
  • Decomposers
review of 3 316
Review of 3.3
  • 14. Both _____ and ______ act as decomposers
  • Bacteria and fungi
review 3 3
Review 3.3
  • 15. Can an organism fill more than one trophic level--- yes or no? Give an example
  • Yes – an organism like a raccoon (last page food web) is listed as a tertiary consumer, but it can also be considered a secondary consumer if it eats a primary consumer (a tiny fish, grub, or grasshopper)
page 5 review
Page 5 Review
  • 1. In food chains and webs, what trophic level must you have more of than others?
  • Producers!
  • 2. Each trophic level has how much LESS energy?
  • 10% less
  • 3. What may happen if a species goes extinct?
  • It affects the entire food web (think of your food web activity)
review of 3 317
Review of 3.3
  • A plant is …
  • An autotroph
  • A heterotroph
  • A primary producer
  • A and C
review of 3 318
Review of 3.3
  • A person who eats a chicken that ate grain is a…
  • Primary producer
  • Primary consumer
  • Secondary consumer
  • Tertiary consumer
review of 3 319
Review of 3.3
  • Primary consumers eat
  • Primary producers
  • Primary consumers
  • Secondary consumers
  • Quaternary consumers
review of 3 320
Review of 3.3
  • A cow is a
  • Primary consumer
  • Heterotroph
  • An herbivore
  • All of the above
review of 3 321
Review of 3.3
  • Autotrophs…
  • Make their own food
  • Are the base of the food chain
  • Are primary producers
  • All of the above
review of 3 322
Review of 3.3
  • A lion that eats a zebra that ate grass is…
  • A primary producer
  • a primary consumer
  • a secondary consumer
  • a quaternary consumer
review of 3 323
Review of 3.3
  • A heterotroph…
  • is an autotroph
  • eats other organisms
  • is a primary producer
  • A and C
  • None of the above
review of 3 324
Review of 3.3
  • A detritivore
  • is an autotroph
  • eats decomposing matter
  • kills animals
  • all of the above
  • none of the above
review of 3 325
Review of 3.3
  • If a person eats a vegetable, the person is acting as
  • A primary producer
  • A primary consumer
  • A secondary consumer
  • A tertiary consumer
  • A quaternary consumer
review of 3 326
Review of 3.3
  • As nutritional energy passes through the food chain, energy…
  • Is lost
  • Is gained
  • Remains constant
  • Increases then decreases
  • Decreases then increases
review of 3 327
Review of 3.3
  • There are more primary producers than there are…
  • Primary consumers
  • Secondary consumers
  • Tertiary consumers
  • Quaternary consumers
  • All of the above
review of 3 328
Review of 3.3
  • The network of all the inter-related food chains in a biological community is called
  • A food web
  • A food chain
  • A food pyramid
  • A ecological experiment
review of 3 329
Review of 3.3
  • The sequence of who eats whom in a biological community is called
  • A food web
  • A food pyramid
  • A food chain
  • A trophic level
review of 3 330
Review of 3.3
  • An organism that gets its energy by eating other organisms is called
  • An autotroph
  • A primary producer
  • A heterotroph
  • A consumer
  • C and D