IB Biology HL A4.1.8 Allopatric and sympatric speciation Question Bank

a. both lead to formation of new species;
b. allopatric occurs in a different geographical area whereas sympatric occurs in the same geographical area;
c. allopatric have physical barriers whereas sympatric have behavioural/temporal barriers (that reduce gene flow);
d. both lead to genetically isolated populations/gene pools;