A) organisms B) species C) clade D) community
A) hybrid inviability B) prezygotic C) hybrid sterility D) reproductive
A) gametic B) behavioral C) ecological D) mechanical
A) behavioral B) gametic C) temporal D) ecological
A) mechanical B) gametic C) temporal D) behavioral
A) gametic B) mechanical C) ecological D) behavioral
A) behavioral B) mechanical C) gametic D) geographic
A) behavioral B) gametic C) ecological D) mechanical
A) genetic equilibrium B) mutation C) microevolution D) extinction
A) 10 B) 8 C) 7 D) 9
A) no natural selection happens B) no mutations happen C) mating is random D) all of these answers
A) They all had beaks for breaking hard seeds. B) They all were going extinct. C) They all descended from a common ancestor. D) Their beak sizes changed as the weather changed.
A) reproductive isolation B) Natural selection C) gene pools D) the weather
A) They mated with different species. B) They flew to different islands. C) They ate different foods. D) They built different nests.
A) Finches were blown by a storm from the mainland. B) Beak differences must cause differences in fitness. C) Finches attract mates through courtship rituals. D) Finches all eat the same type of food.
A) They caught and measured every bird on the island for thirty years. B) They did laboratory experiments that proved Darwin was right. C) They gave the birds different foods so their beak sizes would change. D) They observed natural selection in action.
A) Darwiniaism B) macroevolution C) microevolution D) mutation |