Bio 101 Nvcc Exam Questions With Correct Detailed Answers (Verified Answers) 2025 Marking Scheme

Bio 101 Nvcc Exam Questions With Correct Detailed Answers (Verified Answers) 2025 Marking Scheme Which of the following is INCORRECTLY paired? A.Buffon -- suggested new species arise from a common ancestor B.Hutton -- theory of catastrophism that brief & violent global upheavals are responsible for geological formations C.Cuvier -- recognized that lower layers of rock contain older fossils D.Lyell -- uniformitarianism that natural processes are slow and steady - Answers - B.Hutton -- theory of catastrophism that brief & violent global upheavals are responsible for geological formations What is an adaptation? A.a genetic change over time B.an increase in reproductive success by certain individuals C.a trait that is heritable and confers reproductive success D.differential reproductive success of a particular individual E. B & D - Answers - C.a trait that is heritable and confers reproductive success Why do birds with large beaks predominate over birds with small beaks in dry seasons? A.Birds with large beaks are better at defending territories. B.Birds with large beaks have larger body sizes and survive better in a drought. C.Birds with large beaks are betting at finding mates. D.Birds with large beaks can open tough seeds that are more common in a drought E.All of the above - Answers - D.Birds with large beaks can open tough seeds that are more common in a drought Which of the following individuals is the fittest? A.a dandelion that produces 1000 seeds but only 4 survive to reproduce B.a cat with 6 kittens of which 5 later reproduce C.a large bull elk that successfully defends a large territory D.an elephant that produces and cares for 1 offspring once every 5 years - Answers - B.a cat with 6 kittens of which 5 later reproduce In a population of dogs, long ears are dominant over short ears. If 50 of 200 dogs in a population have short ears, how many of the long-eared dogs are homozygous dominant? A. 25 B. 50 C. 75 D. 100 E. 60 - Answers - B. 50 A population in which an extreme phenotype is favored undergoes ____ selection. A. disruptive B. directional C. stabilizing D. artificial E. polynomial - Answers - B. directional Which of the following is NOT a mechanism of evolution? A. mutation B. natural selection C. genetic drift D. Hardy-Weinberg E. gene flow - Answers - D. Hardy-Weinberg Plato's view of species: A. was consistent with the modern concept of evolution B. did not allow for evolutionary change C. included species that do not actually exist D. recognized that each individual in a species is unique E. allowed for limited evolution within species - Answers - B. did not allow for evolutionary change Whose philosophy was based on the "ideal form"? A. Darwin B. Lamarck C. Darwin and Wallace D. Cuvier E. Plato - Answers - E. Plato 13. Which of these statements BEST illustrates the theory of catastrophism? A. Species become extinct due to natural disasters, such as floods and volcanic eruptions B. Only plant species have become extinct C. Only extinct species appear in the fossil record D. There are no humans in early fossil records because they had not been created yet E. The fossil record is incomplete - Answers - A. Species become extinct due to natural disasters, such as floods and volcanic eruptions 14. The concept that Earth's present landscape is due to gradual geologic processes was proposed by: A. Lyell B. Lamarck C. Buffon D. Malthus E. Aristotle - Answers - A. Lyell 15. Which statement illustrates Lamarck's theory on the mechanism of evolution? A. Fish with coloration that matches the river bottom they inhabit will survive to reproduce B. Plants that can survive in less light will become the dominant species in shaded areas C. Birds with bright colors will attract more mates and pass on the colorful plumage D. A man who routinely shaves the hair off his head will have sons who become bald E. Giraffes with longer necks survived and reproduced faster because they could reach a better food source - Answers - D. A man who routinely shaves the hair off his head will have sons who become bald 16. Which scientist devised the theory of uniformitarianism to account for Earth's old age? A. Plato B. Darwin C. Cuvier D. Lamarck E. Lyell - Answers - E. Lyell