Infections that get past the bladder and up into the kidneys are called pyelonephritis . An infection of the tube that empties urine from the bladder to the outside is called urethritis. UTI symptoms in women and men are similar. Urinary tract infection symptoms may include: Pain or burning upon urination.
August 4, 2010 by bknysh 2 Comments. Echinoderms are a type of invertebrate found in marine or ocean environments. Common echinoderms include the sea star, sea urchin, sand dollar and sea cucumber. Most echinoderms have arms or spines that radiate from the center of their body.nidaria are a class of invertebrates found in aquatic or marine environments. The name Cnidaria comes from the Greek word cnidos, meaning stinging nettle. There are about 9,000 species of cnidaria, the most common being the jellyfish, sea anemone, and coral.
Some examples of invertebrates are mollusks -- snail, mussel, quahog, squid, octopus, nautilus --, echinoderms -- starfish and sea urchins --, arachnids, crustaceans -- lobsters and crabs --, all insects, annelids -- worms and leeches -- protozoa and jellyfish. The main difference between.are that vertebrates have backbones, while invertebrates do not. Other differences are that vertebrates have highly developed brains, while most invertebrates do not.nvertebrates are slow moving, and sometimes small, while most vertebrates are faster, and sometimes larger in size than invertebrates. 98% of animal species are invertebrates, meaning that 2% of animal species are vertebrates.