Which type of reproductive barrier would be present if the r

Which type of reproductive barrier would be present if the reproductive parts of one organism don\'t physically fit inside the reproductive parts of another organism? Mechanical isolation Reduced hybrid fertility Hybrid breakdown Gametic isolation Temporal isolation

Solution

Answer : The correct answer is A ( Mechanical isolation)

Explanation : Prezygotic or premating isolating mechanisms are those that prevent contact between the species when they are reproductively active or which prevent the union of gametes after mating.

The other prezygotic isolating mechanisms includes,

Habitat isolation: Here the populations live in the same region but occupy different habitats, so that potential mates do not meet. For example, habitat isolation is found in the subspecies of mouse in Oregon and the also for snake Natrix sipedon. one subspecies is a freshwater race and the other is a salt water race which itself contributes to reproductive isolation among these species.

Seasonal isolation/temporal isolation.  During which the populations exists in the same region but are sexually mature at different times, so that the potential mates remain unable to mate. for example, over ten species of cypress trees are found in california but they do not interbreed eachother because each race produces a pollen at a different time of the year.