Across
- 2. – Plant hormones that help control how a plant grows, especially toward light or gravity.
- 5. dioxide – A gas taken in by plants during photosynthesis.
- 6. – The part of a seed that gives food to the growing plant embryo.
- 7. nucleus – A part of the female cell in plants that joins with a sperm cell to help form food for the baby plant.
- 9. – The process by which living things make more of their kind.
- 11. – The process by which green plants make their food using sunlight, carbon dioxide, and water.
- 15. reproduction – Reproduction that involves two parents and produces offspring with a mix of traits from both.
- 16. – A liquid that plants take in through roots; needed for photosynthesis and growth.
- 18. – The first cell formed when a sperm and egg combine.
- 20. – Reproduction that involves only one parent and produces offspring that are exact copies of the parent.
- 21. – When a plant grows toward light.
Down
- 1. – When a plant grows toward water.
- 3. – Structures that contain a plant embryo and the food it needs to start growing.
- 4. – The part of a flower that makes and holds pollen.
- 8. – A gas plants release during photosynthesis; animals need it to breathe.
- 10. – A plant’s movement or growth response to something in the environment.
- 12. – The egg cell in a plant or animal that joins with sperm to form a new organism.
- 13. – When a plant grows in response to gravity (roots go down, stems go up).
- 14. – Plants that grow flowers to make seeds for reproduction.
- 17. – When a plant responds to touch, like vines wrapping around something.
- 19. – A young organism that is just starting to grow from a zygote.
