herbivore - these are called secondary consumers - an example is a snake that eats rabbits In turn, these animals are eaten by larger predators - an example is an owl that eats snakes. The tertiary consumers are eaten by quaternary consumers - an example is a hawk that eats owls. Each food chain ends with a top predator and animal with no natural enemies (like an alligator, hawk , or polar bear). Food Chain Questions 1. What travels through a food chain or web? 2. What is the ultimate energy for all life on Earth? 3. Food chains start with what? 4. The 1^st organism in a food chain must always be what type of organism? 5. Name 2 food making processes. 6. Where do chemosynthetic bacteria get their energy? 7. Define herbivore. 8. Herbivores are also called __ 9. What are animals called that feed on herbivores? 10. Secondary consumers are eaten by larger __ 11. __ consumers eat secondary consumers. 12. Make a food chain with a producer and 3 consumers.

1. Energy and nutrients ### 2. The Sun ### 3. Producers ### 4. Producer ### 5. Photosynthesis, Chemosynthesis ### 6. Chemical reactions ### 7. Animal that feeds on plants ### 8. Primary consumers ### 9. Secondary consumers ### 10. Larger predators ### 11. Tertiary consumers ### 12. Grass → Rabbit → Snake → Owl Explanation 1. Identify what travels through a food chain or web Energy and nutrients travel through a food chain or web. 2. Determine the ultimate energy source for all life on Earth The Sun is the ultimate energy source for all life on Earth. 3. Identify what food chains start with Food chains start with producers, typically plants or algae. 4. Define the 1^{st} organism in a food chain The first organism in a food chain must always be a producer. 5. Name 2 food-making processes Photosynthesis and chemosynthesis are two food-making processes. 6. Identify where chemosynthetic bacteria get their energy Chemosynthetic bacteria get their energy from chemical reactions, often involving sulfur or methane compounds. 7. Define herbivore An herbivore is an animal that feeds on plants. 8. Identify another term for herbivores Herbivores are also called primary consumers. 9. Identify animals that feed on herbivores Animals that feed on herbivores are called secondary consumers. 10. Identify who eats secondary consumers Secondary consumers are eaten by larger predators or tertiary consumers. 11. Identify who eats secondary consumers Tertiary consumers eat secondary consumers. 12. Create a food chain with a producer and 3 consumers Example: Grass (producer) → Rabbit (primary consumer) → Snake (secondary consumer) → Owl (tertiary consumer).