Across
- 3. the forth part of the estrous cycle
- 7. the second part of the estrous cycle
- 9. the act of giving birth
- 10. producing an exact genetic copy of an organisms
- 14. difficulty giving birth
- 16. the third part of the estrous cycle
- 17. obtains oxygen and get rid of carbon dioxide
- 18. mating related animals
Down
- 1. circulates blood caring oxygen through the body
- 2. provides movement to the skeleton
- 4. provides structure, support and protection
- 5. heat
- 6. stage 1 of parturition
- 8. stage 2 of parturition
- 11. mating closely related animals
- 12. length of pregnancy
- 13. the cycle of reproduction
- 15. mating animals of different breeds