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