Hurry Which of the following adaptations helps birds fly? They have more fat than most animals, so they can fly for long distances. They have hollow bones, so they are lighter. They have smaller blood vessels, so their hearts have to work less in flight. They have a larger stomach, so they can absorb food faster.

They have hollow bones, so they are lighter.

Explanation:

hollow bones help with oxygen intake btw

They have smaller vessels

Explanation:

because If there heart works less,they won't have any problem having high heqatr rate

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.