benefits and responsibilities

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Across
  1. 3. , to surgically remove the testicles of a male animal
  2. 7. , active at night
  3. 8. ,those kept for the sole use of enjoyment and companionship
  4. 9. , to surgically remove the uterus and ovaries of a female animal
  5. 10. , the feeling of sorrow inflicted by the loss of a loved one
Down
  1. 1. , when an organisms population has exceeded its carrying capacity
  2. 2. , trained dogs that assist their owners with medical conditions
  3. 4. , dogs trained to serve a purpose,such as herding animals or detecting drugs for police
  4. 5. , to abandon something
  5. 6. , to kill an incurably ill or injured animal to relieve suffering