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parenchyma cells with large air spaces to facilitate floating.
the internal supporting framework made of cartilage and/or bone. This type of skeleton occurs in...
a disease caused by the human immunodeficiency virus (HIV).
a complex organic substance needed by the body in small amounts for normal growth and...
tough connective tissue found in conjunction with muscle, cartilage and bone.
liquid that drains out of a landfill and is contaminated with solutes from the waste matter