Across
- 2. the waxy, waterproof layer that helps plants retain water
- 4. the type of reproduction plants undergo
- 5. biologists study these to learn which organisms were the ancestors of today's plants
- 11. a green pigment that absorbs light for photosynthesis
- 14. Plants and other organisms that can make their own food are this
- 15. a group of similar cells with a specific function in an organism
- 16. what plants do to green light
- 17. the cell wall is made of this
Down
- 1. another word for a fertilized egg
- 3. Surrounds and gives support to plant cells
- 5. the process of a sperm cell uniting with an egg cell is called
- 6. what plants do to red and blue light
- 7. an internal system of tubelike structures through which water and food move indie a plant
- 8. the colors of light that make up white light are referred to as this
- 9. the cell structure that makes chlorophyll
- 10. the process by which plants use carbon dioxide gas and water to create sugar and oxygen
- 12. ancestors of today's plants were probably ancient _____
- 13. the plant will wilt if too much water is lost from this saclike storage structure