Across
- 3. energy source for plants to perform photosynthesis; starting energy source in food chains
- 4. a series of steps in which organisms transfer energy by eating and being eaten
- 7. chain represent the direction of energy transferred from one organism to another (ex. producer → consumer) (ex. herbivore → carnivore)
- 8. a substance that provides nourishment essential for growth and maintenance of life that is returned to the soil by decomposers
- 9. organisms that break down waste and dead organisms that return nutrients to the soil (ex. worms and fungi
- 11. A consumer that eats only plants (ex. cows and rabbits)
- 12. organisms that eat living producers and/or other consumers as a food source (3 types of consumers: carnivore, herbivore, omnivore)
- 14. a gas released by plants during photosynthesis and used by animals
- 15. a living thing (producer, consumer, or decomposer)
- 16. species that enter new ecosystems and multiply, harming native species and their habitats
- 17. the energy produced from food sources which keeps animals warm, helps animals move, and allows animals to grow
Down
- 1. organisms that make their own food through photosynthesis; tropic level with the most energy in it (ex. trees and flowers)
- 2. a gas expelled by animals and used by plants during photosynthesis
- 5. A consumer that eats only animals (ex. lions and eagles)
- 6. Species species that normally live and thrive in a particular ecosystem
- 10. sugar created by plants during photosynthesis to help the plant grow
- 13. process by which plants use light energy to convert water and carbon dioxide into oxygen and glucose
- 14. A consumer that eats both plants and animals (ex. bears and racoons)