Across
- 3. period of time that milk is secreted by the mammary glands
- 6. when a female is receptive, also known as heat
- 9. the process by which an embryo develops within the egg under favorable environmental conditions
- 10. the act of giving birth
- 11. removal of the testicles from the male
Down
- 1. stores sperm while they mature
- 2. the period of the time that an animal is pregnant
- 4. the union of the sperm and egg cells
- 5. age at which animals reach sexual maturity and reproduce
- 7. removal of female reproductive organs
- 8. the release of the egg from the ovary
- 10. produces fluid that is mixed with the seminal fluid