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