1. Living Systems Review Thursday, February 6

2. Which is an interaction of a living organism with a non- living component of an ocean ecosystem? A. A sea turtle burying its eggs in sand B. A killer whale eating harbor seals C. Dolphins communicating with each other D. A jelly fish stinging its prey

3. Prairie dogs eat grasses and some insects. They build their homes by digging tunnels underground. Which of the following environmental conditions would best meet the needs of a prairie dog? A. Cool temperatures B. Limited sunlight C. Soft, loose soil D. Few plants and trees

4. Which of the following describes a relationship in which one organism depends on another for its needs? A. A rabbit burrowing in the ground B. A hawk catching and eating a mouse C. A frog cooling off in a pond D. An oak trees absorbing sunlight for food

5. Plants and animals have different needs that are met by their environment. Which of the following are examples of resources the environment provides that are needed by both plants and animals? A. Sunlight and water B. Soil and air C. Water and Air D. Sunlight and soil

6. When animals eat other animals, they are depending on the other animals for — A. shelter B. oxygen C. warmth D. energy