Across
- 4. when condensation makes clouds too heavy and water falls from the sky; depending on temperature, it can rain, snow, or hail
- 6. organisms who consumes producers in the food pyramid, have 5% of original energy from the Sun
- 7. produce their own food using light or chemicals
- 8. animal who only eats plants, ex. cows
- 11. organisms who convert sunlight into food
- 15. new land becomes viable because of pioneer species
- 17. prepares barren land for larger organisms, ex. lichens
- 18. organisms who eat other animals for food aka heterotrophs
- 20. when water vapor cools and becomes a liquid, opposite of evaporation
- 22. organism who obtains energy from dead plants and animals as well as fecal matter
- 24. triangle which shows how energy transfers from organism to organism
- 25. animal who only consumes meat, other animals, ex. tigers
Down
- 1. water is evaporated from land, other surfaces, and plants into the atmosphere
- 2. when organisms take in oxygen and release carbon dioxide, breathing
- 3. microscopic autotrophic organisms who play a key role in aquatic ecosystems; responsible for 70% of Earth’s oxygen
- 5. make their own food, syn. autotrophs
- 9. organisms who convert chemicals into food
- 10. organisms who break down dead organisms and waste and return nutrients to the soil
- 12. organisms who eat secondary consumers, typically the top of the food chain/web
- 13. aquatic, photosynthetic microbes, responsible for the oxygenation of the Earth
- 14. when liquid water warms and turns into water vapor
- 16. the mass of living biological organisms in a given area or ecosystem at a given time, subdivided into producers, primary consumers, etc.
- 19. organisms who eat primary consumers, have .5% of original energy
- 21. evaporation of water from plants
- 23. animal who eats both plants and animals for energy, ex. humans