Answer:
Bones of the skeleton are the primary component of the skeletal system. Two types of bone ____________ tissue are present in most of the bones in the body: compact bone and spongy bone. The bone tissue that appears white, smooth, and solid is compact bone whereas, spongy bone appears porous.
Explanation:
The second blank space does not need to be filled in, since the correct sentence is: Two types of bone tissue are present in most of the bones. OR you can say: Two primary types of bone tissue. IF is mandatory to fill the blank, you can put PRIMARY.
Other name for spongy bone is Cancellous bone.
