write in 30-40 word q.1how bird flu and fish swim in water
Answers
fish swin in the water answer
The muscles contract from side to side and front to back. The fish's body Pushes against the water and moves the fish forward. Fins help fine - tune swimming . The caudal fin, or tail fin, increase speed.
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Explanation:
Fish swim by flexing their bodies and tail back and forth. Fish stretch or expand their muscles on one side of their body, while relaxing the muscles on the other side. This motion moves them forward through the water. Fish use their back fin, called the caudal fin, to help push them through the water.Most fish exhibit schooling during some phase of their life cycle, research has shown. Fish evolved to swim in schools to better protect themselves from predators, improve their foraging and swim more efficiently. ... Exactly how fish pull off this feat has remained elusive.
The webbed feet propel the bird through the water. When the bird pulls its foot forward for the next push, the toes come together, folding up the webs. The foot is instantly less resistant, moving through the water easily to get into place for the next stroke without pushing the bird backwards.