They are part of your weight, and not even a big part: only 15% of your total weight. The rest is mostly water and (increasingly) fat.
Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly. They have crisscross structures to add support inside the bones.
Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly.
So that the bird is not too heavy to fly and to aid in the intake of oxygen as the bird breaths in flight.
Weight-bearing bones include the femur (thigh bone), tibia and fibula (lower leg bones), and the bones of the foot such as the talus, calcaneus, and metatarsals. These bones support the body's weight during activities like standing, walking, and running.
110-120 lbs. It also depends on bone mass, if you have large bones, then add 5 lbs.
Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly.
/This answer will need to be improved/ Before puberty starts, weight training is terrible for your bones.
weight lefting is one way to sterenthen your bones
Bird bones are hollow and very thin or at least most of them are. Some are air filled and others have trusses or cross walls to make them strong. They also have fewer bones than mammals or reptiles of similar size. The skeleton is more rigid. These are factors which help a bird to manage flight.
Penguins do not have skeletons that are identical to humans certain things are different such as bone length and the presence of a tail in the penguin. But certain structures are referred to as homologous. example: the flipper in the penguin and the arm and hand of a human have the same bone structure just different bone lengths.
Bones can hold only three times its weight. This is what allows you to be able to carry things that are heavier than you as the pressure is taken to the bones.
Yes, bones are classified as weight-bearing or protective based on their primary functions. Weight-bearing bones, like those in the legs, support the body's weight and provide structure for movement. Protective bones, such as those in the skull or ribcage, help shield vital organs from injury.