Match the words to the definitions. process organism compound be exposed to enzyme emit a chemical that combines two or more elements __ b come into contact with __ c chemical produced by living cells which causes a chemical reaction __ d send out light or sound, for example __ e set of changes that happen naturally __ f single living plant, animal or other living thing __ Find the words in the text and write them next to the explanations below. Some marine animals use bioluminescence to attract prey. For example, the anglerfish drops a bioluminescent lure from its head which attracts fish looking for plankton When they come near the angler fish eats them. Other animals use bioluminescence for camouflage. They make their body look like the light on the surface of the water so animals in deeper water below them can't see them. Scientists in biomedical research are interested in bioluminescent organisms. Luciferin can be added to molecules and cells to make them visible under a microscope. Some tests to measure viruses or bacteria in a person's blood use this method. a make others want to come near __ b an animal that is killed for food by another animal __ taking on a colour or shape so as not to be seen __ d the top of something __ able to be seen __ f machine used by scientists to make very small objects look larger __ g two types of small organisms that cause diseases __