Q: Remove the spaces from the following sentence: After his doctorate du Bois-Reymond was appointed to teach mathematics and physics at a secondary school in Berlin.
A: [AfterhisdoctorateduBois-ReymondwasappointedtoteachmathematicsandphysicsatasecondaryschoolinBerlin.]

Q: Remove the spaces from the following sentence: 14 For many are called, but few are chosen.
A: [14Formanyarecalled,butfewarechosen.]

Q: Remove the spaces from the following sentence: In comparison, mortality of the crustacean, Gammarus pulex, first occurred at concentrations in the mg l-1 range, and then only after continuous exposure for several days.
A: [Incomparison,mortalityofthecrustacean,Gammaruspulex,firstoccurredatconcentrationsinthemgl-1range,andthenonlyaftercontinuousexposureforseveraldays.]

Q: Remove the spaces from the following sentence: It appeared even a giant Pochard on, an extremely rare species in Europe and the first in all of NRW.
A:
[ItappearedevenagiantPochardon,anextremelyrarespeciesinEuropeandthefirstinallofNRW.]