Unit 3 Biology Crossword

2. Stage 2 of Speciation
3. Something that consumes other organisms
4. Competition between different species
7. Number of organisms of the same species in a habitat
10. Role an organism plays
14. Variety and relative abundance of species present in an ecosystem
15. Energy lost from food chain
17. Ultimate source of energy for an ecosystem
19. Presence or absence give information about the level of pollution or other environmental conditions
20. Stage 4 of Speciation
21. What predators hunt for
22. Stage 3 of Speciation
23. Energy lost from food chain
25. Energy lost from food chain
26. Living things e.g. grazing, predation

1. Competition between the same species
5. They are carnivores and hunt for prey
6. Show the total number of organisms at each stage in a food chain
8. A group of interbreeding to produce fertile offspring
9. Shows the energy shows the energy available at each stage in a food chain
11. Stage 1 of Speciation
12. Shows the direction of energy in a food chain
13. Where an organism lives
16. Non-Living e.g. water, temperature
18. A natural biological unit in which organisms interact with their environment
21. What does a food chain always start with?
24. All organisms which occupy a habitat