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Answer:
4.Cell wall protects the cell whiles organelles are found in the cell itself which is having the cell wall
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.
it only need one to fertilize a egg in a flower
D is the answer (Aa and aa ) i hope this helps
