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