A country like China would probably be in Stage 4 of the population with the low birth rate and low death rate due to their economic power have technology to prolong and save their citizen from diease and condoms
I think the answer your looking for is smooth muscles and cardiac muscles. They only muscles that can be voluntarily controlled is skeletal muscles. Let me know if this is what you're looking for:)
Animals that have are invertebrate are generally insects, or very small animals, such as worms or snails.
Animals that have a vertebrate are generally larger animals,ranging from a small fish or bird, to a whale.
In short, a jaguar is a vertebrate.
