Bonus Science

2. Early development is similar in may different animals.
4. Modification Histones are proteins that DNA wraps around.
6. Growing things into levels based upon similarities.
8. specific characteristics of an individual that are inherited.
12. Organisms with very similar DNA are more closely related.
13. Literally means “above” or “on top of” genetics.
15. Traits controlled by two or more genes.
17. Epigenetic changes alter the physical structure of DNA.
19. the way an organism looks or traits the organism possesses.
20. Structures seen in an organism that do not serve any known function.
21. Fossils found in the same area will increase in age as the rock layer gets deeper.

1. The preserved remains or impression of an organism.
3. Today's modern classification system.
5. Structures in several organisms that are thought to have evolved from one ancestor.
7. Organisms that were only alive during a certain era.
9. Levels of organisms into which organisms are classified.
10. recessive genes present on the X chromosome.
11. the actual genes an organism possesses.
14. the delivery of characteristics from parents to offsprings.
16. the scientific study of heredity.
18. The branch of biology that groups and names organisms.