Freedom is a description of the state of being or of experiencing oneself as unrestrained and unconstrained by forces outside of oneself; the ability to think, will and act independently. The actual condition is always relative. No living organism is ever free of gravity, its physical and mental limitations and its requirements for survival. In theory, the only absolute freedom is death. In fact, this cannot be known or experienced.
No, laws limit individual freedoms in specific and clearly stated instances. It has no effect on the concept.
Yes, it is. Mortals cannot disobey the laws of nature.
The existence of the universe includes the laws of physics; they are inseparable.
Of course not.
From a state humans experienced as restrictive and oppressive, from which they wished to escape. Animals in the wild have no concept of freedom, even though they are governed by the laws of nature and also, if social, by the rules, mores and habits of their group. Animals in captivity long for freedom just like humans in captivity - as you can see on videos of animals let loose after being caged.