Across
- 7. animals without a backbone
- 9. ___________ fertilisation is the union of an egg with a sperm during sexual reproduction outside of the female’s body
- 11. Humans are the examples of __________
- 13. ____________ only have one cotyledon
- 14. ________ breathe through gills when young and breathe through lungs and moist skin when grown up
- 18. Tomato plant and durian tree are one of the examples of _______________
- 19. _________ reproduce by spore formation
Down
- 1. animals with a backbone
- 2. Body temperature changes according to the surrounding temperature
- 3. Crocodile and snake are one of the examples of __________
- 4. _________ plants have vascular system (xylem & phloem to transport water and food) and have true roots, stems and leaves
- 5. __________ reproduce by bearing cones
- 6. _______ are one of the non-flowering plants
- 7. Mammals and birds undergo ___________ fertilisation
- 8. Birds covered by ________ to maintain body temperature
- 10. _______ have fins & tails and breathe through gills
- 12. Monocotyledons have _________-like vein leaves
- 15. Body temperature is constant and free from the influence of surrounding temperature
- 16. __________ plants produce flowers to form fruits that contains seeds
- 17. Stored food for seed germination