Phylum Nematoda
Nematodes, or Roundworms, can be found in various environments such as rivers, oceans, land, polar regions, and even desserts while others are parasitic. They are probably the most common multicellular organism, though some are also microscopic. Some are carnivorous while others feed on fungi and algae. Nematodes do not have a circulatory system since gases, particles, and wastes are exchanged through diffusion, much like Platyhelminthes (previous phylum).
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Turbatrix Aceti
Vinegar Eels are microscopic organisms that inhabit acidic oceans and lakes, and most commonly, vinegars. They can live up to 10 months. Female Vinegar Eels are larger than males, and can give birth to as many as 45 offspring in a span of 8 to 10 days. They generally survive in 60 to 90 degree temperatures. Like all nematodes, the Vinegar Eel has no circulatory system and intakes nutrients and gases and releases wastes through diffusion. |
Ancylostoma caninum
The Hookworm is a parasite known to live in the small intestine of dogs and canines. They have also been found in wolves, cats, and in some cases humans. Dogs can sometimes feel no symptoms, but in severe cases of hookworm infections, some even lead to death. They can invade through the skin, circulatory system, and lungs of their hosts. But they do not have a circulatory system themselves. They depend on the diffusion of nutrients and gases in the organs and systems they inhabit in each host.
The Hookworm is a parasite known to live in the small intestine of dogs and canines. They have also been found in wolves, cats, and in some cases humans. Dogs can sometimes feel no symptoms, but in severe cases of hookworm infections, some even lead to death. They can invade through the skin, circulatory system, and lungs of their hosts. But they do not have a circulatory system themselves. They depend on the diffusion of nutrients and gases in the organs and systems they inhabit in each host.
Dracunculus medinensis
The Guinea Worm is a parasite notorious for living inside human hosts. It has has been documented by Ancient Greeks and Egyptians, and have been made known to 17th Century Europeans after being introduced to it in Guinea, West Africa. It is spread through drinking stagnant water containing the worm larvae and within a year, a blister forms. No circulatory system is present because diffusion already allows for the intake and expulsion of gases and particles.
The Guinea Worm is a parasite notorious for living inside human hosts. It has has been documented by Ancient Greeks and Egyptians, and have been made known to 17th Century Europeans after being introduced to it in Guinea, West Africa. It is spread through drinking stagnant water containing the worm larvae and within a year, a blister forms. No circulatory system is present because diffusion already allows for the intake and expulsion of gases and particles.