Read the passage below. Then write the letter of the best answer to cah o follow

Question

Read the passage below. Then write the letter of the best answer to cah o follows. question that he oversity of life or The Amazon rain forest in South America is a showcase for t Earth. 'Colorful birds, insects, and other animals live among a myried of trees, shrubs vines, and wildflowers, and an excursion along a waterway or a forest path typically reveals a lush variety of plant life. 'Visitors traveling near the Amazon's headwaters in Peru are therefore surprised to come across tracts of forest that are almost completely dominated by a single plant species-a willowy flowering tree called Duroia hirsuta. "Travelers may wonder if the garden is planted and maintained by local people, but the indigenous people are as mystified as the visitors. They call these stands of Duroia trees "devil's gardens," from a legend attributing them to an evil forest spirit. Seeking a scientific explanation, a research team recently solved the "devil's garden" mystery. 'The researchers showed that the "farmers" who create and maintain these gardens are actually ants that live in the hollow stems of the Duroia trees. The ants do not plant the Duroia trees, but they prevent other plant species from growing in the garden by injecting intruders with a poisonous chemical. 'in this way, the ants create space for the growth of the Duroia trees that serve as their home. 1°With the ability to maintain and expand its habitat, a single colony of devil's garden ants can live for hundreds of years. "The chemical the ants use to weed their garden turns out to be formic acid. I2This substance is produced by many species of ants and in fact got its name frorm the Latin word for ant, formica. "ln many cases, the formic acid probably serves asa disinfectant that protects the ants against microbial parasites. "The devi's garden ant is the first ant species found to use formic acid as a herbicide. ISThis use of a chemical is an important addition to the list of functions mediated by chemicals in the insect world. 16Sc insect world. "eSci entists already know that chemicals play an important role in insect communication, attraction of mates,and defense against predators. "Research on devil's gardens is only one example of the relevance of chemi to the study of life. 1"Unlike a list of college courses, nature is not neatly packaged int the individual natural sciences-biology, chemistry, physics, and so fort individual natural sciences-biology, chemistry, physics, and so forth. "Biologists specialize in the study of life, but organisms and their environments are natural systems which the concepts of chemistry and physics apply. 29Biology is a multi-disciplinary science

Explanation / Answer

6)Relationship between the first part and second part of sentence 8:

answer: b)contrast

explanation: The ant does not plant the Duroia tree. but prevent the other specis growing in the garden.

using but conjection word, it is clearly know that it is contrast sentence.

7) The passage suggest that

answer: D) studying natural world requires more than just a strong background in biology.

explanation: because not only biology knowledge, its requires knowledge of chemistry, physics etc.

about Duroia Trees, not only biology knowledge , it requires chemistry knowledge , to solve the mystery.

8) best title:

answer: B) solving the "Devil's Garden" Mystery.

explanation: Here the scientists reveals the mystery of the Devils garden

//any explantion do comments

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