This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following was probably not presentin the atmosphere of the primitive Earth? A) Methane. B) Oxygen. C) Water. D) Carbon dioxide. Show Answer Correct Answer: B) Oxygen. 2. Is less common than bilateral symmetry and is typically observed in animals that are sessile or slow-moving, such as jellyfish, sea anemones, and starfish. In animals with radial symmetry, body parts or structures are arranged around a central axis, creating multiple planes of symmetry. This allows the animal to detect and respond to stimuli from any direction. A) Radial Symmetry. B) Taxonomy. C) Bilateral symmetry. D) Asymmetry. Show Answer Correct Answer: A) Radial Symmetry. 3. The inheritance of short wings in Drosophila fruit flies is an x-linked, recessive trait. Which would most likely result if a short-winged female mates with a long-winged male? A) All offspring will be short-winged. B) All females will be long-winged, and all males will be short-winged. C) All females will be short-winged, and all males will be long-winged. D) Half of the males and females will be short-winged, and half will belong-winged. Show Answer Correct Answer: B) All females will be long-winged, and all males will be short-winged. 4. Darwin knew that in any species, members of the same species each have slight differences, called ..... A) Variations. B) Resources. C) Ancestors. D) Off spring. Show Answer Correct Answer: A) Variations. 5. What term describes the phenomenon where species show little to no evolutionary change over long periods? A) Abrupt appearance. B) Natural selection. C) Stasis. D) Gradualism. Show Answer Correct Answer: C) Stasis. 6. Which of these is the main reason horses evolved? A) A series of diseases swept the a wetter environment. B) The climate became drier, and grasslands slowly replaced the marshes. C) All the above. D) None of the above. Show Answer Correct Answer: B) The climate became drier, and grasslands slowly replaced the marshes. 7. According to geological evidence the earth is A) Hundreds of years old. B) Thousands of years old. C) Millions of years old. D) Billions of years old. Show Answer Correct Answer: D) Billions of years old. 8. ..... is the process by which organisms that are most suited to their environment survive and reproduce most successfully; also called survival of the fittest A) Evolution. B) Fossil. C) Adaptation. D) Fitness. E) Natural Selection. Show Answer Correct Answer: E) Natural Selection. 9. What type of selection is happening when the average phenotype is selected? A) Disruptive selection. B) Stabilizing selection. C) Directional selection. D) None of the above. Show Answer Correct Answer: B) Stabilizing selection. 10. The wings of a bird and the wings of a beetle are considered ..... A) Homologous structures. B) Analogous structures. C) Vestigial structures. D) Phylogenetic structures. Show Answer Correct Answer: B) Analogous structures. 11. What are homologous structures? A) Structures in different species with similar functions but different origins. B) Structures in different species with different functions but similar origins. C) Structures that are identical in all species. D) Structures that have no function. Show Answer Correct Answer: B) Structures in different species with different functions but similar origins. 12. A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive. What should you try to start with? A) P. B) Q. C) Q$^{2}$. D) P$^{2}$. Show Answer Correct Answer: C) Q$^{2}$. 13. Antibiotic resistant bacteria, especially MRSA, are becoming more frequent. Which of the following is responsible for this event? A) Weaker drugs. B) Use of antibiotics in humans. C) Natural selection favors SA with resistance gene. D) Once occurring mutation in a bacterial plasmid. Show Answer Correct Answer: C) Natural selection favors SA with resistance gene. 14. Developed theory of acquired characteristics A) Lamarck. B) Darwin. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lamarck. 15. A physical or behavioral trait that helps an organism survive and reproduce in its environment is called a what? A) An adaptation. B) A response to a stimulus. C) A mutation. D) Evolution. Show Answer Correct Answer: A) An adaptation. 16. During a biology field trip, Mark and Khalila learned about a species whose presence or absence can indicate the health of an ecosystem. What is this type of species called? A) A species whose absence indicates the ecosystem is becoming unhealthy. B) A species whose absence usually cause an ecosystem to collapse. C) A species that normally thrives in the ecosystem. D) A species that has been introduced to an ecosystem, but does not normally live there. Show Answer Correct Answer: A) A species whose absence indicates the ecosystem is becoming unhealthy. 17. Which of the following is not in Hardy-Weinberg equation? A) A population with non-random mating. B) A population in which the allele frequencies do not change over time. C) P$^{2}$+2pq+q$^{2}$=1. D) A population undergoing natural selection. Show Answer Correct Answer: A) A population with non-random mating. 18. British naturalist who published "On the Origin of Species by Natural Selection" in 1859 A) Alfred Wallace. B) Jean-Baptiste Lamarck. C) Charles Darwin. D) Biodiversity. Show Answer Correct Answer: C) Charles Darwin. 19. Dolphins have the same arm structure as wolfs, what type of evidence for evolution does this represent? A) DNA. B) Vestigial structures. C) Homologous structures. D) Embryology. Show Answer Correct Answer: C) Homologous structures. 20. In South America, Darwin found fossils of extinct armadillos that resembled armadillos living in the area at that time. This provided evidence for Darwin that species change over long periods of time. This was similar to which other scientist's idea on how species evolved due to geological changes? A) Lyell. B) Malthus. C) Wallace. D) Lamarck. Show Answer Correct Answer: A) Lyell. 21. Which of the following scenarios BEST illustrates that two organisms likely share a common ancestor? A) Ducks and platypuses both have developed bills for mouths. B) Yeast can use the human version of a yeast gene to repair itself. C) Arctic foxes and Arctic hares grow white coats as camouflage in winter. D) Protozoans can enter the bloodstream and multiply in the liver, causing malaria. Show Answer Correct Answer: B) Yeast can use the human version of a yeast gene to repair itself. 22. The Hardy-Weinberg Model is? A) Available at local hobby stores and retailers throughout the Greater Cleveland area. B) A mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population. C) Always occurring within populations of organisms in nature. D) Only useful in the lab and cannot be practically applied to real-world populations of organisms. Show Answer Correct Answer: B) A mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population. 23. Homologous Structures A) Structures in different species that are similar because of common ancestry. B) Structures that serve the same function in different species but have different evolutionary origins. C) Structures that are completely unrelated in different species. D) Structures that are identical in structure and function across different species. Show Answer Correct Answer: A) Structures in different species that are similar because of common ancestry. 24. Which of the following is an example of the bottle neck effect? A) Bald Eagles are hunted until near extinction, population recovers. B) Small group of iguanas floats to an island, starts a new population. C) Red fox pups are more likely to survive in a snowy environment if they are born white. D) Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year. Show Answer Correct Answer: A) Bald Eagles are hunted until near extinction, population recovers. 25. This is a structure that was inherited but has lost most of its original function A) Homologous. B) Analogous. C) Vestigial. D) Homozygous. Show Answer Correct Answer: C) Vestigial. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 7 Evolution Quiz 1Class 12 Biology Chapter 7 Evolution Quiz 2Class 12 Biology Chapter 7 Evolution Quiz 3Class 12 Biology Chapter 7 Evolution Quiz 4Class 12 Biology Chapter 7 Evolution Quiz 5Class 12 Biology Chapter 7 Evolution Quiz 6Class 12 Biology Chapter 7 Evolution Quiz 7Class 12 Biology Chapter 7 Evolution Quiz 8Class 12 Biology Chapter 7 Evolution Quiz 9Class 12 Biology Chapter 7 Evolution Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books