Two species of frogs mate with each other. The embryo dies after a few cell divisions. What kind of reproductive isolation does this example represent?
A.
temporal isolation
B.
mechanical isolation
C.
postzygotic isolation
D.
gametic isolation

The correct answer is B, mechanical isolation. We know that mechanical isolation prevents two species’ gametes from successfully combining to form a healthy embryo. I hope I helped! :)
Feel free to leave a comment down below if you need me to further explain my reasoning.

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Two species of frogs mate with each other. The embryo dies after a few cell divisions. What kind of reproductive isolation does this example represent? A. temporal isolation B. mechanical isolation C. postzygotic isolation D. gametic isolation

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Two species of frogs mate with each other. The embryo dies after a few cell divisions. What kind of reproductive isolation does this example represent?
A.
temporal isolation
B.
mechanical isolation
C.
postzygotic isolation
D.
gametic isolation