On Europa, one of the moons around Jupiter, water has been found!
However chances are small that there may be life, since much of that water is in an icy frozen state.
DNA I think
I'm assuming you meant "What scientists study all forms of life?" The answer is biologists (the root word "bio" means "life").
True
Scientists think that the first life forms appeared on Earth about 3.6 billion years ago. These were simple cells that eventually evolved into the abundance of life we see today.
A microbiologist studies microscopic forms of life.
The scientists think that Europa can have the life on it.
It may have oceans of liquid water under its layers of water ice. Scientists want to know if these oceans (assuming they are there) contain any forms of life.
All you need for life forms (most simple forms) is amino acids. They have actually been created by scientists.
Because They Are dumb and its very frustrating that no one can answer this question! sorry people who read this.
If there is any alien life it could be cellular life forms, virus like life forms or human like life forms because scientists have already proved that those are the only life forms that could live in outer space.
Scientists don't "think" that the first life forms arose from non-living materials. However, they do accept abiogenesis as the only testable theory on the origins of life, as we know it. The Miller-Urey experiment set out to prove that the chemical components of life can arise from natural processes. While it does not prove life can come from non-living matter, it does show that its' components can arise naturally.
Plants require sunlight to grow. Other forms of life eat plants.