Listening Exercise
Vocabulary:
predator: (n.) a species that preys on others
barbels: (n.) a type of whiskers that some fish have
riverbed: (n.) the channel or ground where a river flows
taste buds: (n.) nerve endings on the tongue that provide the sense of taste
be of no use: (phrase) be useless
muddy: (adj.) full of mud; unclear, difficult to see or hear
swirl: (v.) (of water, smoke or wind) to move in a twisting pattern
concentration: (n.) (in chemistry) the amount of a particular substance in a mixture
gradient: (n.) (in chemistry) a difference in the concentration of particles
objective: (adj.) related to a truth or fact that is not dependent on people’s opinions or judgement
swarm (n.) a large group of something (usually flying insects)
undergrowth: (n.) a type of vegetation that is very close to the soil among taller trees.