Question

Easy question for points.
How do the shapes of birds and fish help in locomotion? (5 marks)​

Answer 1

Answer:

• Fish locomotion involves the deformation of the body and fins. Understanding changes in fin and body shape in 3D is critical to linking structural deformations to patterns of fluid flow and to developing accurate computational fluid dynamic models of swimming fish. Fish that swim using body undulations generate a wave of bending that passes from head to tail, deforming the body into a wave-like shape. The movement of this wave imparts momentum to the water in the form of increased water velocity in the immediate wake behind the fish.
• Although most birds can fly, not all flying animals are birds. For example, many insects also fly. Birds have a very strong heart and an efficient way of breathing – these are necessary for birds to fly. Birds also use a lot of energy while flying and need to eat a lot of food to power their flight. As we have learned, flying birds have strong, hollow bones and powerful flight muscles.Bird locomotion is quite varied; most can fly, some can run very well, some swim, and some do combinations of these. Flying birds’ wings are shaped to provide lift, allowing them to fly. These light-weight animals have adapted to their environment by flying, which makes them efficient hunters, lets them escape from hungry predators (like cats), and takes them away from harsh weather (migration).

Answer 2

Answer:

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