AP BIOLOGY

Detailed explanation-1: -An example of gametic isolation is when the gametes do not have the correct proteins on their surface, which prevent fertilization from occurring. This will often occur between members of different species which have differing proteins on their cell surface.

Detailed explanation-2: -Temporal isolation happens when two or more species reproduce at different times. For example, three species of orchid live in the same rain forest. Each species has flowers that last only one day and must be pollinated on that day to produce seeds.

Detailed explanation-3: -Mechanical isolation is very common in plants. For example, flowering plants that do not have the correct shape for a pollinator will not receive a pollen transfer, and will therefore not be fertilized. In this case, the shape is the barrier.

Detailed explanation-4: -There are five types of isolation that biologically prevent species that might otherwise interbreed to produce hybrid offspring. These are ecological, temporal, behavioral, mechanical/chemical and geographical.