Sponges are in the Porifera phylum
Damage in the bone marrow, called as aplastic anemia leads to lower production of both red and white blood cells, causing oxysgen starvation and infection.
Platelets are also reduced.
The defining characteristic of the intertidal zone is that it is submerged with water during high tide and exposed to the air during low tide. The zone can take many forms, from sandy beaches to rocky cliffs. It is common for the intertidal zone to change frequently, since it is constantly battered by crashing waves.
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