Across
- 2. scorpions and ticks fall into this group
- 5. there are 9 animal...
- 7. breathe through there skin when in water
- 8. the first word of the binomial name of an organism is the ________________
- 10. the ability to detect changes in the environment and respond
- 11. offspring produced by similar animals must be ____________ to be considered a species
- 12. the branch of science concerned with placing living organisms into different classes
- 15. the 5 major groups of living organisms
- 17. phylum with jointed legs
- 18. the removal of excess or waste substances
- 19. Class of arthropods characterised by many legs per segment
Down
- 1. exotherm that lives in water
- 3. the smallest taxon
- 4. the process of placing organisms into different groups
- 6. Mammals are one example of this taxa (group)
- 9. when plants photosynthesise they show this characteristic
- 13. the taxon after class.
- 14. Asexual or sexual _______________________
- 16. one of two classes that has a four chambered heart