Final Answer:
1. Trophic levels (Part 1): Sunflowers → 1st; Caterpillar → 2nd; Bird → 3rd; Fox → 4th
2. Roles (Part 1): Sunflowers → producer; Caterpillar → primary consumer; Bird → secondary consumer; Fox → tertiary consumer
3. Feeding habits (Part 1): Sunflowers → producer; Caterpillar → herbivore; Bird → carnivore; Fox → carnivore; Decomposers → decomposers
4. Purpose of decomposers: To break down dead plants and animals and return nutrients to the soil
5. Trophic levels (Part 2): Seaweed/Phytoplankton → 1st; Zooplankton/Limpets/Mussels → 2nd; Prawn/Crab/Whelk/Lobster → 3rd; Fish/Gull → 4th
6. Roles (Part 2): Seaweed & Phytoplankton → producers; Zooplankton, Limpets, Mussels → primary consumers; Prawn, Crab, Whelk, Lobster → secondary consumers; Fish, Gull → tertiary consumers
7. Feeding habits (Part 2): Seaweed & Phytoplankton → producer; Zooplankton → herbivore; Limpets → herbivore; Mussels → filter feeder (often considered herbivore/omnivore); Prawn → omnivore; Crab → omnivore; Whelk → carnivore; Lobster → omnivore/carnivore; Fish → carnivore; Gull → omnivore
8. Most feeding sources: Crab (eats mussels, limpets, whelk, seaweed, possibly others)
9. Least feeding sources: Seaweed and Phytoplankton (only produce food; no feeding sources—they get energy from sun)
10. Most stable organism: Gull (feeds on many different organisms—fish, crab, lobster, etc.—so if one food source disappears, it can switch to others)
Parent Tip: Review the logic above to help your child master the concept of food chains and food web worksheets.
