Support, Movement and Growth in Animals (16)

Characteristics of bones of terrestrial vertebrates such as elephants

Have big, compact and strong bones

Characteristics of bones of bird

Have hollow bones to enable them them to fly

Advantages of hollow bones (1)

Light and strong

Advantages of hollow bones (2)

Allow the vertebrates to move more quickly

Advantages of hollow bones (3)

Need less calcium and phosphorus

The importance of a good support system

Enables an animal to move more smoothly and efficiently

The stability of an animals

Is different according to the point of equilibrium of the animal's support system

Definition of centre of gravity

Refers to the point of equilibrium of a support system or an object

Definition of the point of equilibrium

Is the point where the weight of the support system or the object acts to balance the position of the support system or the object

Level of stability for animals with a lower center of gravity

Are more stable than animals that have a higher centre of gravity