Answer:
I'm sorry to hear about your turtle. It can be difficult to determine if a turtle is dead or just inactive, as they are known to have periods of inactivity. Here are some signs that may indicate that your turtle has passed away:
Lack of movement: If your turtle is not moving or responding to stimuli, it could be a sign that they have passed away.
Lack of respiration: You can check for signs of respiration by gently placing your hand near the turtle's nostrils and watching for any movement of the chest or abdomen. If you do not see any movement, it could be a sign that the turtle has stopped breathing.
Lack of reflexes: If you gently pinch the skin on the turtle's leg and do not get a reflexive response, it could be a sign that the turtle has passed away.
It is important to note that turtles can go into a state of torpor, where they become inactive and their bodily functions slow down significantly. This can sometimes be mistaken for death, so it is always best to consult with a veterinarian if you are concerned about the health of your turtle.
As for muscle memory, it is not clear if turtles have the same type of muscle memory as humans. However, it is known that turtles can learn through repetition and can remember certain behaviors and patterns.