C. The Composition of your blood
Fossil Fuels; Once they run out ,humans can not replacing them.
Life and death are complex things. Life is the existence of something and death is the end. They go hand in hand. Without one you cannot have the other. To live means to die and to die means you have lived.
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Answer:
Synovial fluid
Explanation:
This fluid is located in between your joints to help for the reduction of friction in moving joints. This liquid is thick, and also helps to prevent your bones from rubbing together. Think of it like a lubricant.
A community for different living organisms that support each other is called an ecosystem. The answer is (A) an ecosystem.
