How do hollow bones improve the survival of birds?(1 point) Responses They help them obtain food. They help them obtain food. They help them detect predators. They help them detect predators. They help them obtain more oxygen. They help them obtain more oxygen. They help them to react to stimuli.
1 answer
They help birds fly by reducing their overall weight, making it easier for them to take flight and stay in the air for longer periods of time.