Animalia are also multicellular organisms, and they can sexually reproduce. The complexity of animalia range from the uncomplex sea sponges all the way to very advanced human beings. Phylum molluska is the third level of taxonomic classification of which octopus are a member. Mollusks are known for their bilaterally symmetric soft bodies. The soft mollusk body is usually protected by a hard outer calcium carbonate shell, however there are some variations regarding the shell as you will see in the following paragraphs.
When comparing the immune systems of cartilaginous fish to mammals you see numerous similarities, but the traits that make them different are distinct. The genome assembly appears to be related to the immuno-globulin and T-cell receptor genes, and also retains unusually low subsets of T helper cells with unconventional antigen-binding properties. Antigen receptor genes matched up with specific MHC genes displays co-evolution of antigen presentation and recondition. Early osteichthyes show a similar MHC gene, only more sophisticated. Elephant sharks immune-genome show resilience while in contact with cytotoxic natural-killer and CD8+ T cells.
Heather Capp Dr. Campese Psych 300 October 20, 2012 Electroreception in Sharks Electroreception is an acute sensitivity to bioelectric fields found primarily in aquatic vertebrates as either a passive or active skill. Electroreceptive animals make use of weak electric currents chiefly to locate objects around them, particularly prey .This ability can also be used to avoid predation and in geomagnetic navigation. Sharks, like other members of the Elasmobranch family, possess electroreceptors called ampullae of Lorenzini, which are scattered over their heads in distinct clusters. They are an extension of the lateral line, which is a long, hollow sensory organ stretching down sharks’ sides from gill to tail with perforated scale openings, allowing the sharks to sense water pressure, direction, and displacement. Ampullae of Lorenzini are used in passive electroreception, which utilizes the animate and inanimate electric fields generated by the activity of nerves and muscles in other animals in order to detect them.
After a few key points, it’ll come into view that one species is clearly more dominate than the other. More often than not, both reptiles and amphibians are mistaken for one or the other. One feature to determine if an animal is a reptile or an amphibian is by its physical characteristics. Amphibians have smooth moist skin. By touch they feel slippery and sticky.
Chromatophores enable an octopus to camouflage itself with its surroundings by changing the appearance of its epidermis. FACT: Octopi are cephalopods. Cephalopods are a class of mollusc that includes squids, cuttlefish, nautilus, and octopi. Cephalopods are bilaterally symmetrical and have a head, arms, and in some cases, tentacles. FACT: Octopi are highly intelligent.
Approximately 95 million years ago, the ancestor of today’s dolphin, the Mesonix, roamed the earth. It was a land animal that went into the water to eat. It had front legs and back legs and was covered with hair. Plenty of the research that has been conducted shows that this is with the Artiodactyl order. It is believed that the ancestors of dolphins that we know today entered the water about 50 million years ago!
Pigeon Key Marine Research Major and Minor Parrotfish Important Information! My major is a Parrot fish. My minor is algae. Parrotfish can be found mostly in the Hanauma Bay. Which is located in Hawaii, Honolulu, on the island O’ahu.
We know this thanks to preservation of soft tissues found on some trilobite fossils. The same fossils are also found in freshwater environments, suggesting that some freshwater trilobites existed among saltwater trilobites. Up to the late Devonian Period they were very diverse, and likely there were trilobites that specialized in most every type of marine food source. Some definitely burrowed in the mud of the sea bed, likely eating anything they found there. Others would have been active predators and hunted other trilobites, worms, etc.
I. Introduction • Scientific Name: Actiniaria • Common Name: Sea anemones • Location: Deep coastal waters worldwide, in shallow waters(including coral reefs) and deep oceans II. Taxonomy Classification: • Kingdom: Animalia • Domain: Phylum Cnidaria (Also Coelenterata: corals, jellyfish, sea anemones, hydroids) • Class: Anthozoa (meaning “flower-like animals” e.g. corals, hydroids) • Order: Actiniaria III. Information 1.
But to top all of that, it is estimated that whale sharks live up to 100 150 years. The classification of the whale shark is fairly simple, they are in kingdom Animalia, then phylum Chordata, next they are in subphylum vertebrata, after that is placed in the class Chondrichthyes, and then subclass Elasmobranchii (sharks and rays), next in the family Rhincodontidae, after that in the genus Rhincodon, and finally in the species Typus (The Whale Shark Bibliography. Tethys Marine). Swimming in the whale sharks