2 years ago

PLSSS HELP THIS IS DUE IN 20 MIN

Biology

1 answer:

ra1l [238]2 years ago

6 0

Answer:

Explanation:

1- closely packed osteons or haversian systems, used to provide strength and protection to bones.

2- Spongy bone consists of plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow. provides balance to the dense and heavy compact bone by making bones lighter so that muscles can move them more easily.

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