hid bone
It has a rigid skeleton but the body is flexible.
internal skeleton
The rigid structures that make up the skeleton are bones. The human skeleton is composed of 206 bones that provide support, protection, and leverage for movement. These bones are connected by joints, ligaments, and tendons to form a complete framework for the body.
They both perform the function of providing a rigid structure.
The anatomical feature is a "rigid skeleton" (as opposed to a flexible one).
A rigid skeleton helps birds by providing structural support and enabling them to maintain a lightweight body, which is essential for flight. The rigidity of their bones allows for the attachment of powerful muscles necessary for flapping wings and navigating through the air. Additionally, the fusion of certain bones enhances stability and reduces the overall weight, further improving their aerodynamic efficiency. Overall, a rigid skeleton is crucial for a bird's ability to fly effectively.
Yes Yes it does All insects and arachnids are invertebrates and have exoskeletons.
Sponges don't have skeletons! They are invertebrates which means the creature doesn't have a backbone, but in this case, it doesn't have a skeleton! (I think this is right, I apologize if it isn't)
the bones are rigid --------- I think a better way to answer this is they are rigid, but both curved and straight. Have you ever seen a picture of the femur, the pelvis, or the scapula? What about the clavicle? These bones, as all bones are, are rigid. They hold their shape (unlike the cartilage of the ear or nose) but are curved. A rigid straight bone could be named as the phalanges, or the humerus (MAYBE). I mean, even the radius and ulna are curved a small amount.
Animals such as vertebrates, including humans, have a somewhat rigid internal skeleton made of bones or cartilage and multiple muscles attached to this skeleton for movement and support. Invertebrates like arthropods (e.g., insects, crabs) also have exoskeletons that provide structure and muscles for movement.
The spike forms a rigid frame that helps support and protect the sponges body.
Because a plant has no skeleton, its support is found in it's cells. The cells have a rigid cell wall for support and structure.