TERM 1 NS

1. fusion of the egg and sperm
4. cold-blooded animals that reproduce by external fertilisation and lay eggs
5. receives pollen grains
7. the process in which plants use light energy from the Sun to make their own food
9. the number of kingdoms
13. branch of science that is concerned with classification
14. these plants have green flexible stems
16. seeds can be dispersed by wind, water, animals and ______ dispersal
19. monthly bleeding caused by the shedding of the lining of the uterus
21. produces pollen grains

2. root system that consists of many fine branched roots
3. chemical substances that regulate the activity of cells
6. kingdom that includes mushrooms
8. attachment of the embryo to the wall of the uterus
10. characteristic that helps a living thing survie in its environment
11. produced by plants that do not have flowers or seeds
12. these plants have cones instead of flowers
15. cold-blooded animals that reproduce by internal fertilisation and lay eggs
17. dicotyledons have petals in multiples of ______ or five
18. all of the living things and non living things that live in a specific area
20. patterns on petals that guide insects to the flower are called _______ guides