If you havenât visited Louisville, KY lately, you might not recognize it. The entire downtown is nearing the completion of a $1 billion revitalization. On virtually every corner thereâs something new popping upânew Bourbon distilleries, new Southern-inspired culinary destinations and new places to explore.
What type of symmetry do sponges have? A: Some sponges have radial symmetry, but many species are irregular in shape and have no symmetry at all. Two simpler groups of sponges, known as asconoid an... Full Answer >
Sea sponges â as found in their natural un-harvested state â are comprised of a hard, shell-like protective outer layer covered with tiny pore-like holes which travel deep down into and all throughout the soft structure within.