• Choose the missing prepositions from the drop-down menus below.
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

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

Scientists Germany’s University of Konstanz and others from China and Singapore helped to sequence the genome the tiger tail seahorse. A genome is a map of all the genes and genetic information a cell or organism. Seahorses started to change other fish 100 million years ago. They began to take their unusual shape, which resembles a horse. There is a total of 54 species seahorse. Its scientific name is Hippocampus. The word 'Hippocampus' comes the Ancient Greek word hippos meaning 'horse' and kampos meaning 'sea monster'. The word 'seahorse' can also be written as two separate words (sea horse), or hyphenated a dash the two words (sea-horse).

Back to the seahorses lesson.

Share this lesson

More Free Sites by Sean Banville

Online Activities