living and none living

A living thing must be made out of protein, and it must have a circulating system that contains movable element, for example for human they have veins for their circulating system, and blood for carrying nutrient to support the body and carrying out waste from your body. But carrying out waste isn't necessary, because spiders doesn't poop. But for sure all the living organisms must have a system that intakes nutrients from outside, because it's impossible to have something that never needs nutrient from outside and can be able to move by it self.

Living organisms should also have defense system and reproductive system. Because for example on earth all the organisms are aggressive, because to be able to live you have to kill your enemy. And also you have to reproduce to balance the amount of your species's death.

But I'm not sure about that point, I know this is the way how it works on earth, but for the ET example ET came to planet earth which he thinks we are aliens. Maybe there's a planet the organisms over there doesn't reproduce and fight, maybe they're all not aggressive so there will be no injuries or deaths, so it will decrease a lot of the reason to reproduce. Or maybe the planet is located in the very edge of the universe where there are really really really really tiny chance of getting hit by a meteorite and distinguish all the organisms. But having all living organisms should have ability to reproduce still stands a very high chance. Because all the living organisms should die eventually, unless they take the energy of a planet as refresh their organs and skin every time it got bad, but still nothing is infinity. But probably some kind of organism lives for thousands of years because there are no heat, acid, radiation and everything which are destructible on the planet. But who knows, so i think based on human's knowledge we still can't make rules about living organisms, unless earth is where all the living organisms are in the entire universe.

community service

My name is David Sun, and i go to shin-lu foundation for my community service. There are lots of kids who have mental problem there, their looks might be a little different too.
The teachers over there tells us to take care of a kid, and walk them through some kind of agility training maze thing, to train their reflexes, you have to be very careful not to let their head hit on the bars and everything. And for me it's not that tired to take care of the kids there, because its really fun to watch them going through those maze because each of them have their unique way of going through it. some kids gets to lye on a wheeled-pillow like thing and slide through the maze, because they have problem with their legs. Any ways it's also a very special opportunity to have this kind of experience, and i had lots of fun on my first day.