different between ays vs sys

ays

ays From the web:

• what ayso region am i in
• what system is the heart in
• what system is the kidney in
• what system is the liver in
• what system is the brain in
• what system removes waste from the body
• what system is the pancreas in
• what system is the spleen in

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sys

sys From the web:

• what system is the heart in
• what system is the kidney in
• what system is the liver in
• what system is the brain in
• what system is the pancreas in
• what system removes waste from the body
• what system is the spleen in
• what system does the us use