Question

chapter quiz: processes of evolution
total points: --/100
which of these outcomes are examples of reproductive isolation? select all that apply.
reproduction occurs at different times
individuals of different species are physically compatible and can engage in sex
hybrid individuals or their offspring have similar fitness to the original species
mating occurs but fertilization does not occur

Explanation:

Define reproductive isolation

Reproductive isolation refers to biological barriers preventing different species from producing fertile offspring.

Analyze temporal differences

Reproduction occurring at different times is temporal isolation, a prezygotic barrier preventing interbreeding.

Analyze physical compatibility

Physical compatibility and successful mating do not prevent reproduction, so this does not represent isolation.

Analyze hybrid fitness

Similar fitness in hybrids indicates gene flow is successful, meaning reproductive isolation has not occurred.

Analyze fertilization failure

Mating without fertilization is gametic isolation, a prezygotic barrier preventing successful reproduction.

Answer:

• Reproduction occurs at different times (Correct answer)
• Individuals of different species are physically compatible and can engage in sex
• Hybrid individuals or their offspring have similar fitness to the original species
• Mating occurs but fertilization does not occur (Correct answer)