Answer: They have a backbone
Explanation: Humans and fish are both vertebrates. Vertebrates are organisms with a backbone.
1. metacarpals
2. carpals
3. phalanges
Yes he can.
If he was just neutered today:
Leash walks only so he can urinate and defecate. If he runs around he risks breaking sutures/glue.
If he was neutered a few days ago:
Also leash walks only until sutures fully healed
Remember to keep the e-collar on!
The cells would be dividing all the time. Hope this helps