Across
- 6. a division of plants, grouped within the gymnosperms
- 7. a microscopic body that contains the male reproductive cell of a plant.
- 10. a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants
- 11. fertilized ovule containing the plant embryo
- 12. central part of a plant ovule; contains the embryo sac
- 13. protect the seed from physical, temperature-related, or water damage
Down
- 1. palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders
- 2. are a division of vascular land plants containing a single extant class, Pinopsida
- 3. a leaf that bears sporangia.
- 4. A vascular plant in which the seeds are not enclosed by a ripened ovary Supplement
- 5. having the male and female reproductive organs in separate individuals.
- 8. A division of trees comprising the ginkgos
- 9. natural covering of an organism or an organ, such as its skin, husk, shell, or rind