Answer:b)lubricating surfaces
Explanation:took it on edge hope this helped
Answer: As matter cycles and energy flows through living systems and between living systems and the physical environment, matter and energy are conserved in each change. The carbon cycle provides an example of matter cycling and energy flow in ecosystems.
Explanation:
Answer:life
Explanation:The good shepherd gives his life for the sheep
Answer:
it shocks the hearts muscles jolting the heart into working again.
Explanation:
Sensory neurones send data to the brain.. the processes it and send back information with the help of the motor neurons.