More 3 ,the saguaro cacti still persist despite the unbearable desert climate.Those that have grown to old age have 4 droughts,freezes,flash floods,and bush fires as well as the 5 caused by groups of rats that eat their seedlings(秧苗).Like all other desert 6 ,these leafless giants can store water for use during the desert’s long dry seasons by 7 water through their long roots.
Naturally,the great saguaro cacti are a(n) 8 part of the desert life.Actually the giants may be 9 to many animals,including woodpeckers,owls,doves,bats and insects.In addition,after a saguaro cacti 10 the age of 50 or so,cold-resistant flowers 11 at the top of the plants once a year.These flowers 12 birds,bats and bees,which come for the honey and for the tasty flowers with their black seeds.
13 the splendid saguaro cacti are plentiful in the Southwest,they are unfortunately 14 .These giant saguaro cacti have great value in landscape gardening,and the thieves can earn thousands of dollars by uprooting and 15 them to nurseries(苗圃).To protect these southwestern 16 ,agents for the Arizona Department of Agriculture go around and 17 the desert.It’s a most important job though a hard one.But without the saguaro cacti,many desert animals would suffer a lack of 18 and loss of nesting sites.The Southwest,too,would 19 something of unique importance,since these desert giants have become a 20 of the dry region.
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