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prezygotic isolating mechanisms were here first and have the advantage over postzygotic because they have had a longer time to develope and get harmful genes out of their population.

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Q: Why prezygotic isolating mechanisms have an advantage over postzygotic isolating mechanisms?
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How do postzygotic isolating mechanisms reinforce prezygotic ones?

Prezygotic, of course. Unless the behavior was to expel unwanted sperm or something like that. Generally the mating behaviors prevent ( pre ) any zygotes from having any possibility of being formed.


What is thought to be essential for the formation of distinct species rather than a continnum form one from of life to another?

Reproductive isolating mechanisms are either prezygotic or postzygotic. These mechanisms ensure that species remain distinct in nature.ChaCha!answer


What is Mechanical Isolation?

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.


Isolating mechanisms that take effect before or during fertilization are termed?

prezygotic


What is a prezygotic mechanism?

prezygotic or postzygotic


What are reproductive barriers?

There are two general categories of reproductive isolating mechanisms: prezygotic, or those that take effect before fertilization, and postzygotic, those that take effect afterward. Prezygotic RIMs prevent the formation of hybrids between members of different populations through ecological, temporal, ethological (behavioral), mechanical, and gametic isolation.


Is ecological isolation a prezygotic isolating mechanism?

Sure is. How can one mate if an ecological barrier is erected between two biological species? Even something as simple as the time of day can be a barrier to mating.


What are isolating mechanisms?

Intrinsic mechanism is defined as an obstacle to interbreeding. Examples of intrinsic isolating mechanism includes behavioral and structural incompatibility. An example of extrinsic is geographical barrier.


What are intrinsic isolating mechanisms?

Intrinsic mechanism is defined as an obstacle to interbreeding. Examples of intrinsic isolating mechanism includes behavioral and structural incompatibility. An example of extrinsic is geographical barrier.


Two species breeding at different times describes what isolating mechanisms?

Temporal isolation: Individuals do not mate because they are active at different times. This may be different times of the day or different seasons. The species mating periods may not match up. Individuals do not encounter one another during either their mating periods, or at all. Source:Wikipedia: Isolating mechanisms


What is an example of a reproductive barrier that may separate two similar species?

There are two general categories of reproductive isolating mechanisms: prezygotic, or those that take effect before fertilization, and postzygotic, those that take effect afterward. Prezygotic RIMs prevent the formation of hybrids between members of different populations through ecological, temporal, ethological (behavioral), mechanical, and gametic isolation.


How does reproductive isolation occur. And what is an example?

The mechanisms that restrict gene flow is called reproductive isolating mechanisms. It is achieved through specific breeding requirements which may be physical or physiological. Example-The amazing partnership of the Bucket orchid and orchid bee is so precise that if either one went extinct, the other would follow,. No other orchid can possibly cross-pollinate the Bucket Orchid.