biology crossword

6. cutting down of trees to make room for human development
7. breaking up of a protein
9. selection: the process where organisms that are better adapted to their environment tend to survive and reproduce
12. when it has two different alleles for a trait
14. fishing to the point there is no more fish in a specific area
19. the ability of an organism or species to live and thrive in its environment
20. a different version of a gene
21. respiration: where cells produce energy ( atp ) by breaking down glucose
24. an organism is homozygous when it has two identical alleles for a trait
25. organisms that cannot produce their own food and must obtain energy by consuming other organisms
26. of change: how fast or slow the environment changes
29. chemical process requiring air or oxygen
30. isolation: when a population of organisms is seperated by physical barriers

1. the powerhouse of cells , breaks down food into usable energy
2. an organelle in the cells that contains photosynthetic pigment
3. the process by which new species are formed
4. physical appearance of characteristics of an organism
5. the number of times a plant species occurs in number of quadrats
8. ressitance the ability of some organisms to survive diseases or enviroment changes
10. of fertilizers over applying fertilizers that kills the vegatation
11. trait: characteristic that will only show up in phenotype if both alleles are recessive
13. traits characteristics that give an organism a better chance of surviving and reproducing in its enviroment
15. genetic make up of a organism
16. a taxonimic group converting more than one species
17. substance that speeds up a chemical reaction
18. too much water that it has no where to drain
22. a large molecules formed when many smaller molecules bond together
23. when a species population exceeds the carrying capacity in its environment
27. organisms that produce their own food through photosynthesis
28. lack of water