Answer: The correct match for the given organs and function is a s follows-
1) Protects against infection - spleen, lymph nodes
2) Senses stimuli - brain, spinal cord.
Spleen and lymph nodes are the organs of the lymphatic system that help in destroying pathogens ( disease causing organisms) that enter the body of the individual.
Brain and spinal cord are the part of nervous system, which senses the information from environment and interprets it in the form of appropriate response.
