Biology Bonus Crossword

4. condensed bundles of DNA
7. the movement of materials across the cell membrane
9. any heritable characteristic that increases an organism's ability to survive and reproduce in its environment
12. cell division that produces gametes
14. process that happens when your systems need to slow down or completely stop a process that is happening
16. the process by which a cell divides into two daughter cells
17. reproductive cell (sperm, egg, pollen)
19. a hollow ball of cells with a cluster of cells inside known as the inner cell mass
20. a permanent change in the nitrogen base sequence in a gene

1. the differences in DNA between organisms of the same species
2. domain, kingdom, phylum, class, order, family, genus, species
3. the evolutionary history of an organism
5. the actual genes an organism possesses
6. the process by which organisms with variations most suited to their local environment survive and pass on traits to offspring
8. very large molecules that make up living things
10. the units that DNA is made of
11. the way an organism looks or the trait the organism possesses
13. ribonucleic acid
15. the process that living things use to maintain stable conditions
18. deoxyribonucleic acid