Question 1:

Which of the following is a prezygotic barrier to reproduction?

Explanation: Behavioral differences, such as different mating rituals or preferences, can act as a prezygotic barrier to reproduction. They prevent individuals of different species from successfully mating and producing offspring. Therefore, option C is correct.

Question 2:

Which of the following describes allopatric speciation?

Explanation: Allopatric speciation occurs due to geographic isolation. Populations of the same species become geographically separated, leading to genetic divergence and the formation of new species. Therefore, option D is correct.

Question 3:

Which of the following is an example of macroevolution?

Explanation: The divergence of mammals into different groups, such as primates and rodents, is an example of macroevolution. Macroevolution refers to large-scale evolutionary changes that result in the formation of new taxa or major shifts in biodiversity. Therefore, option C is correct.

Question 4:

Which of the following can contribute to allopatric speciation?

Explanation: Geographic barriers, such as mountains, rivers, or oceans, can contribute to allopatric speciation by physically isolating populations. This isolation restricts gene flow and allows for independent evolutionary changes to occur. Therefore, option D is correct.

Question 5:

Which of the following is an example of adaptive radiation?

Explanation: The diversification of Darwin's finches on the Galapagos Islands is an example of adaptive radiation. Adaptive radiation refers to the rapid diversification of a common ancestor into a variety of species, each adapted to different ecological niches. Therefore, option B is correct.