PACIULLI FINAL BIO 181 NCSU ACTUAL 2025/2026 QUESTIONS & 100% CORRECT ANSWERS

PACIULLI FINAL BIO 181 NCSU ACTUAL 2025/2026 QUESTIONS & 100% CORRECT ANSWERS To the west of Wallace's Line in Southeast Asia are organisms related to Asiatic species. To the east of the line, there is a mixture of species of Asian and Australian origin. This is an example of: - Answer - biogeography Two members of the initial Amish migration to Pennsylvania in 1744 shared the recessive allele for Ellis-van Creveld syndrome, which results in a long narrow chest and shortening of the limbs. More Amish people have these traits than the surrounding non-Amish population. This is an example of... - Answer -the founder effect Evolutionary changes within a species are most accurately referred to as: - Answer -microevolution Our ancestors had much bigger jaws than we do, which helped them chew a tough diet, tear apart meat, etc. Their teeth also wore down quickly. Wisdom teeth (third molars) grew later in life, and helped our ancestors continue to eat. Today, ~35% of people are born without wisdom teeth. This is an example of: - Answer -evolution The idea that most speciation is slow and uniforms is known as: - Answer -gradualismDrongo birds live in central Africa. One population is found in evergreen rainy forest areas, while another population is found in open grassland areas. The two populations live in two different habitats 150 feet apart, and do not interbreed. The _____ Species Concept best explains this phenomenon. - Answer -ecological Selection pressure throughout earth's history has been most often exerted by... - Answer -the environment The first step of the scientific method is _____ . - Answer -observation People who are wealthy, and only marry people who are wealthy who have blond hair and blue eyes are practicing a form of _____ mating. - Answer -assortative Non-poisonous king snakes mimicking poisonous coral snakes is likely due to _____ - Answer -biogeography All wasps have stingers. This thing in my hand is a wasp. Therefore, this wasp can probably sting me! This is an example of _____ reasoning. - Answer -deductive We said that each level of life ... - Answer -has emergent properties The only source of new genetic variation is / are _____ . - Answer - mutations Although Jean-Baptiste Lamarck's work was important in the development of evolutionary thought, he was wrong because he believed that characteristics were _____. - Answer -aquired The large antlers of moose help them fight other males, to gain access to females. - Answer -intrasexual selection