Answer:
the shaft and the bone marrow
Explanation:
A hard outer layer called cortical (compact) bone, which is strong, dense and tough. 2. A spongy inner layer called trabecular (cancellous) bone. This network of trabeculae is lighter and less dense than compact bone.
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The answer to this question is the Pyers
patches. The Pyers patches are lymphatic tissues found through
the small intestines that have an important role in the immune system. Pyers
patches are also known as the aggregated lymphoid nodules that monitors and
prevents growth of bacteria in the intestine that is harmful in the intestines.
The first one according to the graph