What is the definition of life?
Anything that dies when you stomp on it.
Seriously, however;
There are 7 characteristics, all of which must be met to classify something as life.
1. Living Things are Composed of Cells
2. Living Things Have Different levels of cellular organization
3. Living Things Use Energy
4. Living Things Respond To Their Environment
5. Living Things Grow
6. Living Things Reproduce
7. Living Things Adapt To Their Environment
Things primarily made of carbon that breath oxygen and poop? Who says so? Aliens could be made of uranium, not breath at all, absorb dirt through their feet (if they have any) and grow smaller as they age!
Another thing I don't understand is that we sent a loving record into space with human language recorded onto it. Who the hell is stupid enough to assume that aliens would be able to even remotely understand that? Maybe all that "space radio noise" is actually aliens trying to communicate, but they're too stupid to realize we can't understand.
Past the first '?', your post(s?) becomes stupider and stupider.
Answer Key: No, Anyone with half a brain, No, Yes, What, No, No comment, No.