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chapter 13 vocabulary
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fossil record: made up of all the fossils ever discovered on Earth
mold: impression of an organism in a rock
cast: a fossil copy of an organism in a rock
trace fossil: the preserved evidence of the activity of an organism
geologic time scale: a chart that divides Earth's history into different time units
extinction: occurs when the last individual organism of a species dies
biological evolution: is the change over time in populations of related organisms.
naturalist: Charles Darwin
variation: a slight difference in an inherited trait of individual members of a species
natural selection: process by which populations of organisms with variations that help them survive in their environments
adaptation: an inherited trait that increases an organism's chance of surviving
camouflage: blend in with the environment
mimicry: king snake
selective breeding: desired traits
embryology: development of embryos
chapter 13 vocabulary
Across:3. | a fossil copy of an organism in a rock | 5. | impression of an organism in a rock | 8. | desired traits | 11. | Charles Darwin | 12. | made up of all the fossils ever discovered on Earth | 13. | king snake | 15. | is the change over time in populations of related organisms. |
| | Down:1. | process by which populations of organisms with variations that help them survive in their environments | 2. | occurs when the last individual organism of a species dies | 4. | an inherited trait that increases an organism's chance of surviving | 6. | the preserved evidence of the activity of an organism | 7. | development of embryos | 9. | blend in with the environment | 10. | a chart that divides Earth's history into different time units | 14. | a slight difference in an inherited trait of individual members of a species |
| |
© 2015
PuzzleFast.com, Noncommercial Use Only
chapter 13 vocabulary
Across:3. | a fossil copy of an organism in a rock | 5. | impression of an organism in a rock | 8. | desired traits | 11. | Charles Darwin | 12. | made up of all the fossils ever discovered on Earth | 13. | king snake | 15. | is the change over time in populations of related organisms. |
| | Down:1. | process by which populations of organisms with variations that help them survive in their environments | 2. | occurs when the last individual organism of a species dies | 4. | an inherited trait that increases an organism's chance of surviving | 6. | the preserved evidence of the activity of an organism | 7. | development of embryos | 9. | blend in with the environment | 10. | a chart that divides Earth's history into different time units | 14. | a slight difference in an inherited trait of individual members of a species |
| |
© 2015
PuzzleFast.com, Noncommercial Use Only