Reproduction

12345678910
Across
  1. 5. age at which animals reach sexual maturity
  2. 7. the release of the egg from the ovary
  3. 8. the artificial application of premier conditions for an embryo to develop
  4. 9. the union of the sperm and egg cells
  5. 10. removal of the testicles
Down
  1. 1. the act of giving birth
  2. 2. when a female is receptive to breeding
  3. 3. removal of female reproductive organs
  4. 4. the period of time that an animal is pregnant
  5. 6. period of time that the mother excretes milk