Monday Review March 18, 2013

1. Monday ReviewMarch 18, 2013

2. We see grasshoppers eating plants, frogs eating grasshoppers, snakes eating frogs, and hawks eating snakes. What do we call this? A. a feeding cycle B. a food chain C. an eating chain D. a meal cycle

3. What is an example of an instinct? A. a dog catching a stick B. a horse performing at a horse show C. a bird feeding its young D. a student doing homework

4. Why do fish and frogs lay so many eggs in a pond? A. many fish and tadpoles swim away B. many eggs and young are eaten by other animals C. fish and frogs grow too slowly D. there are too many fish and frogs

5. What are organisms that make their own food called? A. consumers B. producers C. omnivores D. predators

6. Animals and plants need each other. Which statement about their mutual needs is NOT correct? A. Animals need carbon dioxide, and plants need oxygen B. Animals give off carbon dioxide needed by plants C. Plants give off oxygen needed by animals D. Animals need oxygen, and plants need carbon dioxide

7. What do you call the organisms at the beginning of every food chain? A. producers B. consumers C. herbivores D. carnivores

8. When plants make their own food, they add what gas to the atmosphere? A. Nitrogen B. Carbon dioxide C. Oxygen D. Hydrogen