Evolution

3. Individuals that have characteristics not well suited to their environment either die or have few offspring
7. Type of medication used for treating viral infections
8. When a population is separated, gene ____ stops and creates a new species
10. parts that are similar in structure but are different in function
11. body parts that are similar in structure but are different in function.
12. study of embryos and their development
15. over time Bacteria can become resistant to antibiotics
18. ____ organs are structures that seem to be “left over” from a previous ancestor and seem to serve no purpose in the living organism.
19. you are given or passed on antibodies

1. first living cells on earth were
2. Study that shows species that have common ancestors should have similar characteristics.
3. An explanation that is based on observation, experimentation, and reasoning.
4. Is a change in DNA that alters an allele
5. What kind of people study fossils
6. refers to the variety of living things that inhabit our planet.
9. Change over time
13. Changing environments select for specific genetic ____
14. Sickle Cell Anemia developed to protect people from ____ which spread due to Natural Selection
16. Individuals do not _____. A population can ____over time.
17. your own body produces antibodies