Across
- 3. A process where organisms take in and give off gases to the environment. Plants take in carbon dioxide during respiration
- 5. The food-making process in green plants that use sunlight, carbon dioxide and water.
- 6. Pores, small holes, in the bottom of the leaves that open and close to let in carbon dioxide and give off oxygen.
- 7. A reaction to a stimulus
- 8. The loss of water through a plants leaves
Down
- 1. The reproductive structure of a conifer, such as a pine tree. These cones house seeds instead of a plant having flowers.
- 2. A trait that helps a living thing survive in its environment
- 4. Something in the environment that causes a response
