Answer:
fresh wtaer spknges are classified in Demospongiae
Answer:
The noise of cracking or popping in our joints is actually nitrogen bubbles bursting in our synovial fluid
Explanation:
It is because synovial fluid lubricates your joints like motor oil in a car's engine, reducing friction and preserving our cartilage.
<u><em>PLS MARK BRAINLIEST :D</em></u>
Metabolism, Hope that helped!