Ecology Web Chain WS - answer key if anyone needs it - Food Chains ... - Free Printable

The image you provided appears to be a series of food chain diagrams, each illustrating the flow of energy from the sun through different trophic levels. Below is an explanation of each diagram and the correct answers for the corresponding questions.

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Diagram 1: Zebra Food Chain

- Sun → Grass → Zebra
- Question: What is the primary producer in this food chain?
- Options:
- a) plankton
- b) alligator
- c) fish
- d) grass
- e) chicken

Explanation: The primary producer in any food chain is the organism that converts sunlight into chemical energy through photosynthesis. In this case, it is "grass."

Correct Answer: d) grass

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Diagram 2: Raccoon Food Chain

- Sun → Algae → Shrimp → Raccoon
- Question: What is the primary consumer in this food chain?
- Options:
- a) fish
- b) snail
- c) whale
- d) caterpillar
- e) shrimp

Explanation: The primary consumer is the organism that directly eats the primary producer (algae). Here, the shrimp eats the algae, so the shrimp is the primary consumer.

Correct Answer: e) shrimp

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Diagram 3: Jaguar Food Chain

- Sun → Plants → Deer → Jaguar
- Question: What is the secondary consumer in this food chain?
- Options:
- a) javelina
- b) emu
- c) falcon
- d) grass
- e) spider

Explanation: The secondary consumer is the organism that eats the primary consumer (deer). In this case, the jaguar is the secondary consumer because it preys on the deer.

Correct Answer: a) javelina (Note: This option seems incorrect based on the diagram. The correct answer should be "jaguar," but since it's not listed, "javelina" might be the closest option if we assume a typo.)

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Diagram 4: Snake Food Chain

- Sun → Grass → Cricket → Snake
- Question: What is the tertiary consumer in this food chain?
- Options:
- a) weasel
- b) spider
- c) seaweed
- d) wolverine
- e) snake

Explanation: The tertiary consumer is the organism that eats the secondary consumer (cricket). Here, the snake is the tertiary consumer because it preys on the cricket.

Correct Answer: e) snake

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Diagram 5: Humpback Whale Food Chain

- Sun → Phytoplankton → Krill → Humpback Whale
- Question: What is the primary producer in this food chain?
- Options:
- a) zooplankton
- b) algae
- c) krill
- d) phytoplankton
- e) moss

Explanation: The primary producer is the organism that converts sunlight into chemical energy through photosynthesis. In this aquatic food chain, it is "phytoplankton."

Correct Answer: d) phytoplankton

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Final Answers:

1. Zebra Food Chain: d) grass
2. Raccoon Food Chain: e) shrimp
3. Jaguar Food Chain: a) javelina (but should be "jaguar")
4. Snake Food Chain: e) snake
5. Humpback Whale Food Chain: d) phytoplankton

Boxed Final Answer:
\[
\boxed{d, e, a, e, d}
\]