601 -2. The ants create space for Dama trees by A. killing insects that attack the Daroia trees. n. poisoning the soil with formic acid so that only Daroia trees will grow c. using formic acid to protect the Deara trees against microbial parasites D. killing other plant species by injecting them with poison MBINED SKILLS: Test 6 Read the paape below. Then write the keter of the best anwwer to cach question that follows The Amaron rain forest in South America is a showcase for the diversity of life on Earth Kolorfui berds, insects and other animals live among a myriad of tree, shrubs, widflowers and an excursion along a waterway or a forest path typicaly eveals a lush variety of plant life. Visitors traveling near the Amazon's headwaters in Penu ane theretoe surprised to come across tracts of foest that are almost complesey dennated by a single plant species.. wilowy flowering tree called Drohnuta may wonder if the garden is planted and maintained by local people, but the people are as mystified as the visitors. "They call these stands of Duroia trees Ants protect Dunia trees because A. they are their chief souece of food B. shade from the trees protects the ants against the hot jungle sun C. the ants live in Duroia trees. D. all of the above _ 3. vines, and "Travelers 4. The "farmers" mentioned in this selecticn are indipenous people B. setlers who have recently arrived in the Amazon rain forest c. scientists who have raised and stodied colonies of devil's garden ants D. devil's garden ants devi'sgardens'from a legend atvibuting them to an evil forest spint Seeking a sclentific explanation, a research team recently solved the "devis garden" mystery. "The researchers showed that the Tarmens" who create and maintain these gardens are actually ants that live in the holiow stems of the Duroia trees. "The ants do not plant the Durols trees, but they prevent other plant species from growing n the garden by injecting intruders with a poisonous chemical in this way, the ants create space for the growth of the Durola ees that serve as their home. "With the ulity to maintain and espand its habitat, a single colony of devil's garden ants can live S. In the first paragraph, the auor mainly 5. In the first paragraph, the author mainly , compares visitors to the Amazon with the indigenous inlahiants of B. lists reasons why the Amaron rainforest is one of the most beasutiful C. contrasts the divensity of mot of the Amazon rain forest with the region places on earth sections that are dominated by Daroi tree lur hundreds of years The themical the ants use to weed their garden tuns out to be formik acid ths stance is produced by many species of ants and in fact got its name from the Latin word for ant, formica n many cases the formic acid probably serves as a dsnfectant that protects the ants against microbial parasites. "The devi's gaden ant is the frst ant species found so use formic aid as a herbicide "This use of a chncal-an tant additior, to the ist d tretions medated by chemicals in the nsect world icentists already know that chemicals play an important sole in insect narrates a voyage to the heale aters of the Amaron River in Peru 6. The relationship between the first part of sentence 8 and the secoed part A. comparison. c. contrast attraction of mates and defense against predators a. caune and effect D aldlition Revearch on devit's gardens is orly one example of the relevance of chemistry s the shudy of lfe. unlke & lot of colege counes, nature is not neatly packaged into The passage uggests that A. the devil's ganden ant is harming the natwral ens -7. ng the natural enviroement and te ndiidial natural soences-biology, chemistry, physics, to which the concepts of chemistry and physics apply. "Biology is a hould be destroyed and so forth. "Biologists pecialize in the study of life, but onganisms and their environments are natural systems ientists who solved the devil's garden mystery should receive an important prize in science c. ants are the most destractive insect species n studying the natural workd requires more than just a strong I In sentence 4, the word indigenous means background in biology highly creative. 8. Which tiale best summarizes the passage? A. Biology, the Multi-dinsciplinary Science n. Solving the "Devil's Ganden" Mystery c. The Lepend of Durco Trees D. The Amazing Rain Forest