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.

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

Which identifies the main purpose of biological taxonomy?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.