What are the two types of bone tissue? smooth and calcitonin compact and spongy compact and smooth spongy and calcitonin

## Step 1<br />The question is asking for the two types of bone tissue. In human anatomy, bones are composed of two main types of tissue: compact bone and spongy bone.<br /><br />## Step 2<br />Compact bone, also known as cortical bone, is dense and forms the outer layer of the bone. It provides strength and protection.<br /><br />## Step 3<br />Spongy bone, also known as cancellous or trabecular bone, is found inside the bone and has a porous structure. It is lighter and less dense than compact bone and provides support while reducing the weight of the bone.<br /><br />## Step 4<br />The other options provided, such as "smooth and calcitonin" or "compact and smooth," are not accurate descriptions of bone tissue types. Smooth refers to smooth muscle tissue, and calcitonin is a hormone.