The type of bone that has irregularly arranged collagen bundles is called

The primary bones are characterized by the irregular arrangement of collagen bundles.

Explanation:

Bones are the organ that provides framework and support to the body which is composed of tissue called collagen. The bone which appears first during embryonic development of the living organism is called primary bones.

As primary bones are formed during initial stages, they have irregularly arranged collagen bundles or fibers, which gets modified in later developmental stages.

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