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postzygotic barrier
the correct answer is:A. hybrid sterility
The Postzygotic Barrier prevents animals of different species from producing fertile offspring. This barrier is a mechanism of reproductive isolation.
Hybid sterility would be a barrier to postzygotic reproduction. This means that the hybid is sterile. Hybid breakdown and inviability are also barriers.
The mule would be considered postzygotic. This is because of the usually sterile reproductive traits that are commonly associated with being a hybrid.
There are two types: prezygotic and postzygotic. Prezygotic barriers prevent mating from even happening. If mating does occur, postzygotic barriers reduce the chances that an offspring will survive before being born. One prezygotic reproductive barrier is mechanical isolation.
a postzygotic barrier
a prezygotic barrier
Reproductive isolating mechanisms are either prezygotic or postzygotic. These mechanisms ensure that species remain distinct in nature.ChaCha!answer
a post-zygotic barrier
postzygotic
A barrier method means there is a physical device to prevent sperm from entering the woman's reproductive tract.Birth Control Pills, IUD, sterilization, withdrawal, rhythm, are not barrier methods.Male or female condom, sponge, cervical cap, diaphragm are all barrier methods.