Twelve pairs of ribs are attach to the second spinal region which is called the thoracic. Thoracic spine is kyphotic. Kyphotic means excessive curvature of the spine as it occurs in thoracic and also sacral regions. Thoracic spine is located in the chest area.The ribs are attach to the thoracic spine and protect the vital organs that is located thoracic spine region.
Answer:
When energy flows out of a system, it must all flow into the surroundings.
When energy flows out of a system, ΔEsystem is negative.
When energy flows into the surroundings, ΔEsurroundings is positive.
Therefore,
─ ΔEsystem= ΔEsurroundings
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C because it is the most reasonable answer and it makes the most sense
