Word Pairs


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The words
For the first [time / timely] , scientists have unlocked the secrets to one of the world's most recognizable and [uniquely / unique] , but least understood fish – the seahorse. Researchers have worked [out / up] the genetic code of the Southeast Asian tiger tail seahorse. They now [had / have] the genetic map of all of its [DNA / NDA] . This means scientists can find out a lot more about this sea [creature / creative] than before. They can now start to [figure / number] out why seahorses are so different to [another / other] fish. Unlike other fish, seahorses have no teeth. Another difference is the male brooding of their young - male seahorses carry babies and give [birth / born] to them instead of females. In addition, seahorses do not [swim / swum] horizontally like other fish; they swim vertically (up and down).

Scientists from Germany’s University of Konstanz and others [for / from] China and Singapore helped to sequence the genome of the tiger tail seahorse. A genome is a map of [all / any] the genes and genetic information in a cell [nor / or] organism. Seahorses started to [change / charge] from other fish about 100 million years [age / ago] . They began to take on their unusual shape, which [resembles / assembles] a horse. There is a total of 54 species of seahorse. Its [scientific / scientifically] name is Hippocampus. The word 'Hippocampus' comes from the Ancient Greek word hippos [mean / meaning] 'horse' and kampos meaning 'sea monster'. The word 'seahorse' can also be [written / wrote] as two separate words (sea horse), or hyphenated with a dash [between / among] the two words (sea-horse).

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