Across
- 4. a reproductive structure that contains a plant embryo
- 7. the broad, flat part of a leaf; absorbs light needed for photosynthesis
- 8. small opening in the epidermis of a plant that allows carbon dioxide, water, and oxygen, to diffuse into and out of the leaf
- 10. includes seedless plants such as ferns and both nonflowering and flowering seed plants
- 12. a tiny, waterproof reproductive cell that can grow into a new organism
- 15. plants that lack specialized tissues for the transport of water.
- 16. plants that form seeds in cones
- 17. structures that are adapted for sexual reproduction in conifers
Down
- 1. specialized cell in the epidermis of plants that controls the opening and closing of the stomata
- 2. the tissue that transports water and nutrients in other plants
- 3. a seed plant that produces seeds enclosed in fruits
- 5. carries food made in a plant's leaves down to the other plant parts
- 6. a tubelike structure that attaches a leaf to its stem
- 9. moves water and nutrients from the ground upward in the plant
- 11. an early stage in the development of an organism
- 13. the transfer of pollen from the stamen to a pistil
- 14. tubelike structures that transport water in the leaf
