The most common bone shape in the body is the bone shape. One of the principal features is a shaft called a(n) that contains a hollow, cylindrical space inside called the cavity. In children, this cavity contains bone marrow, which is later replaced by bone marrow in adults. An end of these bones is called a(n) . The other three bone shapes in the body generally have an external surface composed of bone and the interior is composed entirely of bone.

Answer with Explanation:

The most common bone shape in the body is long and curved bone shape.

One of the principal features is a shaft called Diaphysis  that contains a hollow, cylindrical space inside called the marrow cavity.

In children, this cavity contains red bone marrow which is later replaced by yellow bone marrow in adults.

An end of these bones is called ephiphyses.

The other three bones shapes in the body generally have an external surface composed of periosteum bone and the interior is composed entirely of endosteum bone.

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the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.