NCSU BIO 181 EXAM 1 Questions and answers, 100% Accurate. VERIFIED.

NCSU BIO 181 EXAM 1 Questions and answers, 100% Accurate. VERIFIED. The idea that most speciation is slow and uniform is known as: - -Gradualism Darwin's work on the Galapagos Islands led him to derive all of the following concepts, EXCEPT - -. Inheriting acquired characteristics Correct People who are wealthy, and only marry people who are wealthy who have blond hair and blue eyes are practicing a form of _____ mating - -assortative 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: - -biogeography Northern elephant seals have reduced genetic variation most likely due to being hunted. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century. Since then, their population has rebounded to over 30,000, but the genes still have much less variation than the genes in a population of Southern elephant seals that were never hunted. This is an example of... - -Bottleneck Effect A phylogeny drawn in the shape of the letter Y represents... - -Cladogenesis Sharks and humans excrete the same type of excretory product. This is an example of... - -convergent evolution 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: - -evolution