Which sex is more likely to face selection in order to obtain more mates? How ma

Question

Which sex is more likely to face selection in order to obtain more mates?
How many males failed to find mates? How many females failed to find mates? The data below show the relationship between the number of mates an individual had and their reproductive success for both males and females of Drosophila. This is from the first study of this kind, done in 1948 by Angus Bateman; graphs of this kind are sometimes called Bateman gradients in his honor. The original data - Bateman's 1948 study of Drosophila 120 males females Mean 90 number offspring 60 produced 30 Number of Mates True or False: The fact the number of mean offspring goes up with males indicates that males are probably under selection to obtain more mates. Select one: O a. False Ob. True

Explanation / Answer

1) true

2) females need atleast one mate, but additional mates dont increase reproductive success

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