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Science Bowl Question

📅 NSB 2012🎓 HS🔄 Round 4#️⃣ Q25❓ TOSS-UP📝 Multiple Choice

Which of the following examples describes a postzygotic reproductive barrier that creates or enforces reproductive isolation?

W) Two closely-related species of garter snakes live in the same area, but one lives mainly in water while the other lives mainly on land
X) Two species of closely-related skunks have different mating seasons
Y) Two species of closely-related snails have morphological differences that prevent successful inter-species mating
Z) Two species of closely related equines may successfully mate to produce offspring, but the offspring is sterile
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