The things that live here on Earth all have a lot in common. The tiny parts inside you that are responsible for helping you do everything you do, like walking, breathing, and digesting your food – those tiny parts are almost exactly the same in all types of life, from flies and fish to trees and cows.
All types of life have other things in common, too. All living things have a body of some kind. Some things have body parts that allow them to walk or fly or swim. These are things like legs and wings and fins. All of the living creatures we know have to eat food in order to have the energy to move and grow. All living things can respond to their surroundings, just like you can taste something awful then spit it out and shout “YUCK!” And all life comes from other life – just like how you came from your mother and father. So even though we look so different from other living things, we are much more the same than different. There are many characteristics shared by all living organisms on Earth.
For example, all known organisms are highly complex chemical systems. They have thousands of interdependent molecular components. Even the simplest life forms are capable of hundreds of different chemical reactions, and these reactions wouldn’t occur otherwise in nature. They don’t occur spontaneously; they only occur in living things. Most of life’s chemical reactions require enzymes: these are molecular catalysts. They greatly increase the efficiency of reactions, and the catalyst or the enzyme itself is a molecule that doesn’t change in the process of facilitating that chemical reaction.
These are traits that human beings share with other living things.
- homeostasis
- Cellular structure
- Organization
- Metabolism
- Growth
- Movement
- Requirement of energy
- Homeostasis
- Consciousness
- Healing and Repair
- Disposal of waste
- Reproduction
- Adaptations
- Life Span
- Death
NASA Astrobiology
We are all Interconnected even with the Universe 
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