Cormorants are medium-to-large birds known for their unique ability to dive up to 150 feet underwater in order to catch fish. In a lake, a population of cormorants has two variations: those who can hold their breath underwater for 30 seconds and those who can hold their breath for 45 seconds.
Overfishing from humans has caused many fish to avoid the surface of the water, and they instead swim closer to the bottom of the lake.
Complete the following statement to describe what will most likely happen to the cormorant population over time.
There will be in the number of cormorants in the population who can hold their breath for 45 seconds because .
Which condition is essential for natural selection to result in a new species?
Which statement describes why brightly colored feathers are selected for in populations of male peacocks?

According to the principles of natural selection, which of the following is most likely to result in speciation?
Over the past 100 years, rhinoceros horns have been highly sought after by trophy hunters and poachers. They often target rhinos with the largest, most valuable horns. As a result, rhinoceros horns have gotten significantly smaller in size.
Which statement best describes why the average size of rhinoceros horns has decreased?