Match each organ or function with its body system. protects against infection spleen spinal cord senses stimuli lymph nodes brain

Spleen, lymph nodes - protects against infection.
Spinal cord, brain - senses stimuli

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the