Which type of osseous tissue is composed of dense, calcified units called osteons?

The type of osseous tissue that is composed of dense, calcified units called osteons is known as Compact Bone.

Here are the steps to answer this question:

1. Understand the question: The question is asking about a specific type of osseous (bone) tissue that is made up of dense, calcified units known as osteons.

2. Recall knowledge about osseous tissue: Osseous tissue, also known as bone tissue, is a type of connective tissue that provides support and protection to various parts of the body. It is composed of a hard matrix of calcium salts and collagen fibers.

3. Identify the types of osseous tissue: There are two types of osseous tissue - compact bone and spongy bone.

4. Identify the characteristics of each type: Compact bone is dense and solid, while spongy bone is less dense and has a porous, honeycomb-like structure.

5. Match the description in the question to the correct type: The question describes a type of osseous tissue that is composed of dense, calcified units called osteons. This description matches the characteristics of compact bone.

Therefore, the answer is Compact Bone.