Question

sort the words according to the meanings of their shared roots.
immortal parameter mortality nonspherical
postmortem biosphere paramedic comparison
beside ball; globe death

Explanation:

• For the root "beside": The prefix "para - " can mean "beside". So words with "para - " that fit this root are "parameter" (para - + meter, related to being beside a measure), "paramedic" (para - + medic, beside medical care), and "comparison" (com - + par - , with "par - " related to being beside for comparison).
• For the root "ball; globe": The word "nonspherical" has "spher - " (related to sphere/ball), and "biosphere" has "sphere" (the region of the earth or a planet with life, related to globe).
• For the root "death": The word "immortal" (im - + mortal, mortal means subject to death, so immortal is not subject to death), "mortality" (related to death), "postmortem" (post - + mortem, after death) are related to death.

Answer:

• beside: parameter, paramedic, comparison
• ball; globe: nonspherical, biosphere
• death: immortal, mortality, postmortem