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Units 1-5 Practice Quiz Directions: Read each text and answer the questions below. Passage 1 Would You Like a Liger? Biologists have found that about 10 percent of animal species may sometimes breed with other species. This means that two animals of different species can produce offspring. Scientists have discovered more of these animals in the last 25 years. One example of a hybrid animal is the mule, which is a cross between a donkey and a horse. It is more difficult for hybrid species to survive in the wild, however. Occasionally, species that are too different genetically might mate in nature. Many babies that come from the different species are unable to reproduce. This means that the hybrid species cannot grow in number. Zorses, which are a hybrid of a horse and a zebra, and mules, are two examples of species that cannot reproduce. Another problem that hybrid species have is that they face competition from the members of their parent species. There are also positive things about producing hybrid species in the wild. Hybrids may develop adaptations to conditions that neither of their parents was able to live in. This could happen because of new gene combinations being produced in hybrids. Scientists have studied the adaptation of hybrid species using sunflower and honeysuckle plants. Two common species of sunflower are the common sunflower and the prairie sunflower, and both species only grow in moist soil. Their hybrids can grow in desert climates and salt marshes, however. When parent sunflowers were planted in the desert, they failed to survive. Results of the studies done with plants are comparable to similar things that have happened in animals. The studies of animal and plant hybrids could help us discover how humans have adapted. 1. Which statement supports the idea that animal hybridization is unsuccessful?
2. Read this sentence from the passage. When parent sunflowers were planted in the desert, they failed to survive. Based on this statement, what is the author suggesting?
3. What does the statement "Results of the studies done with plants are comparable to similar things that have happened in animals" mean?
Passage 2 On July 20, 1969, Apollo 11 became the first manned mission to land on the Moon. The mission involved astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins. Armstrong’s first steps on the Moon were accompanied by his historic words: “That’s one small step for man, one giant leap for mankind.” The landing fulfilled the goal set by President John F. Kennedy eight years earlier. He wanted the United States to make it to the Moon within the decade. He believed this to be an important accomplishment in the space race against the U.S.S.R. Kennedy said, "We choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard." On the Moon, Astronauts Armstrong and Aldrin experimented with various methods of movement in the diminished gravity. Long leaping steps seemed to work best for moving about. They explored the surface for about two hours, collected 47 pounds of lunar samples, and planted the American flag on the Moon’s surface. The crew safely returned to earth a little over eight days after leaving. 4. Which of these best summarizes the passage?
Directory: cms -> lib -> NJ01000237 -> Centricity -> Domain lib -> 1. naclo 2017 – North American Computational Linguistics Olympiad lib -> Chem I honors Unit 2 Notes: Numbers in Chemistry Measurement lib -> Sanderson High School ap human Geography Summer Assignment 2016 lib -> Find fantastic ousd elementary music programs lib -> American Studies Pacing Calendar 2014-2015 lib -> The ap history Timeline 8000bce-the Present lib -> Absolutism in Europe Domain -> Chapter 2 Regions and Resources (pgs. 28-46) Study Guide Domain -> Samuel Morse(1791-1872) Download 312.39 Kb. Share with your friends:
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