Across
- 4. the ''Golden age'' of fishes
- 8. Is a group of related classes
- 10. Mammals successfully colonized all environments
- 11. This is the highest and most comprehensive level of classification
- 14. As development continuoes form embryo to a more mature organism
- 17. Is a group of related species
- 18. Amino acids are the basic building blocks of ___
- 19. This is the branch of science that names and groups organism
- 21. When the evolution of one species affects the evolution of another species
- 23. It is a person who study biology
- 24. Are layers of calcium carbonate that form in warm, shallow seas
- 26. Gathered into larger clusters to make plants
- 27. Is a group of families
- 28. The process of the evolution of anew species
- 29. The age of dinosaurs
- 30. Change in population over time
Down
- 1. This is a natural and important part of evolution
- 2. The genetic makeup of an individual
- 3. It stands for deoxyribonucleic acid
- 5. Process whereby plants use light energy to cause carbon dioxide to react with water
- 6. Evidence for evolution
- 7. The idea that species originate through a gradual change of adaptions
- 9. Bones and other hard parts are replaced by minerals
- 12. Horses and elephants
- 13. Changes in the gene pool of a population that result in changes in allele frequencies
- 15. The generation of major change in the assemblage of organism
- 16. The traits of an individual
- 20. He grouped everything into simple groups such as animals or plants
- 22. Is a group of related orders
- 25. the ''Golden age'' of cephalopods