Across
- 4. This germ layer gives rise to muscle cells.
- 6. Mosses, liverworts and hornworts are examples of this type of plant.
- 8. The veins on the leaves of a monocot are arranged in this way.
- 10. This phylum contains creatures that have 'spiny skin'.
- 12. These plants produce naked seeds and bare cones.
- 14. This evolutionary development allows animals to respond to the environment in more sophisticated ways.
- 18. The term 'pore-bearer' refers to this phylum.
- 19. The vertebrae in a human as well as the repeating sections in an earthworm are examples of this.
- 21. Kidney beans and coffee beans are examples of this type of flowering plant.
- 22. Humans belong to this phylum.
- 24. This germ layer gives rise to skin cells.
- 25. This structure is part of the female carpel of a flower and serves as a landing pad for pollen.
Down
- 1. This structure holds the pollen of a flower and is supported by a filament.
- 2. The study of animals.
- 3. During this process of embryonic development the three germ layers are formed.
- 5. A fertilized egg is called this.
- 7. A plant growing towards the sun is experiencing this phenomenon.
- 9. This seedless vascular plant was the first to develop vascular tissue that can transport water and nutrients.
- 11. The most abundant animal phylum.
- 13. The phylum containing humans shows this type of symmetry.
- 14. The name of this phylum means to be a 'stinging creature'.
- 15. The phylum Nematoda has this type of a coelom.
- 16. Fruit is formed by this type of plant.
- 17. This phylum shows is the first to evolve a true coelom.
- 20. This germ layer gives rise to the cells that make up the digestive tract.
- 23. Octopi and squid belong to this phylum.
