A donkey and a horse can mate and produce a mule why

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A donkey and a horse can mate and produce a mule. Why are they not considered to be the same species?A. the mule will only mate with other mulesB. the mule is sterileC. the mule can only mate with donkeysD. the mule will only mate with horsesE. the mule is bigger than both the donkey and the horse
Feedback:CorrectQuestion 7 of 101.0/ 1.0 PointsAt a family get-together, your uncle says “I don’t believe in that evolution stuff. Scientists are always saying that something evolved because of ‘a gene for eyes’ or ‘a gene for wings’. Well, that’s crazy – how can one single gene build an eye or a wing?”How do you reply?
Feedback:CorrectQuestion 8 of 101.0/ 1.0 PointsIn the process of adaptive radiation, there is usually one species from which others will quickly diverge. This original species is known as the
Feedback:CorrectQuestion 9 of 101.0/ 1.0 PointsThe difference between dispersal and vicariance when considering allopatric speciation is that dispersal has organisms leaving the homeland for a different one while vicariance
Feedback:CorrectQuestion 10 of 101.0/ 1.0 PointsTwo species of birds have different mating songs and so do not interbreed. This is an example of ________A. temporal isolationB. allopolyploidyC. behavioral isolationD. habitat preference
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Chapter 19-wk 15 Study QuestionsReturn to Assessment ListPart 1 of 1 -10.0/ 10.0 Points

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