The Amphioctopus Marginatus is of the Kingdom Animalia because like other members of this kingdom, it is both multicellular and is a heterotroph. This species is also part of the phylum Mollusca because like other mollusks, it has a coelom, (letter B on the first phylogeny tree), a visceral body mass, and a mantle (letter C). Furthermore, because it is not part of the phylum Chordata, it does not have the notochord (letter A) (Doc 2). It is of the class Cephalopoda, because like other members of this class, such as Asteroceras Confusum, the Marginatus has a merged head and foot (letter F), a siphon (letter D), and a ring of tentacles (letter E) surrounding the head (Doc 1). As a member of the order Octopoda, this species has eight arms (Letter G) (Doc 3). Furthermore both the sub groups Incirrina and the Cirrina have a reduced shell size (letter H) (Doc 3). As a member of the sub order Incirrina, the veined Octopus does not have cirra (letter J) which is found only in the the sub order Cirrina (Doc 5). The letter I represents the lack of paired fins on the head an aspect that is com...
Fox, R. 2001. Invertebrate Anatomy OnLine: Artemia Franciscana. Lander University. http://webs.lander.edu/rsfox/invertebrates/artemia.html, retrieved February 13, 2011.
Tigriopus californicus is an amazing little marine crustacean that is classified as a Harpactacoid copepod. Harpactacoid meaning it’s class, and copepod meaning its order.
One hundred and fifty million years ago, large aquatic species of reptile such as the Plesiosaur dominated the ocean, and were pre-eminent predators of the sea. The branch of now extinct Plesiosaurs, or ‘near lizards’, evolved into variant closely related species specialised to take different niches in the food chain. Such species of Plesiosaur include the phenotypically similar Plesiosauroid and Pliosauroid. The physiological adaptations of the long necked variant, the Plesiosauroid, as it relates to deep sea diving, will be addressed in depth.
Hyla versicolor, commonly know as the Gray Tree Frog or the Eastern Gray Tree Frog, is an amphibian that is referred to as the “Chameleon of the Frog world” (Craighead, 2004, p.1) because of its ability to change colors. “This frog was once thought to be the same species as the Cope’s Gray Tree Frog”. They can only be distinguished by their calls and the fact that the Cope Gray Tree Frog is diploid while the Gray Tree Frog is tetraploid (NPWRC, 2004). The Gray Tree Frog is classified as follows:
The Sacculina carsini, or parasitic barnacle, makes it’s host a green crab, also known as the Carcinus maenas. The parasite in this relationship changes the host’s behavior. It also enables itself to survive, spread and continue this cycle. As talked about in “The Parasitic Sacculina That Bends Its Host to Its Own Will”, when a female barnacle is still in its larval stage, it finds a crab host, and it locates a certain joint in the host’s shell. When there, the parasitic barnacle sheds her outer shell and puts herself inside the crab. Once she is inside, she is in a slug-like form. She creates a root system of tendrils, which extend throughout the abdomen of the crab. The root system takes over the crab’s intestine, diverticulae and surrounds the stomach. This
The background of this article gives information that is necessary to understand the experiment. The shape of the pelvic girdle is an appropriate predictor of both phylogeny and movement in terrestrial vertebrates. However, in marine vertebrates, the gravitational forces typically applied to terrestrial pelvic girdles are not there and therefore have little impact on the shape of the girdle. Pelvic girdles of fish are generally not attached to the vertebrae and primarily are used as a place for muscles to attach and supporting of the fins. The authors discuss how in many cases the pelvic girdle could be removed and not result in any complications. However, there are some marine vertebrates that are capable of bottom walking on the ocean floor with their fins. In batoids, the pelvic fins are used for walking, which is when pelvic fins move in an alternating fashion, or punting, when both pelvic fins move at the same time. There is also augmented punting; this is when the vertebrate uses both the pectoral fins and the pelvic fins to generate more thrust, this action decreases the forces on the pelvic fins during a punt. While this locomotion would
Phylon 49.3/4 (2001): 173. Academic Search Premier -. Web. The Web. The Web. 20 Mar. 2014.
Cane toads originated from South America, were introduced to Australia in the early 20th century and have been in Australia for nearly 70 years. Cane toads were relocated by the Europeans to control destructive beetles that destroyed sugarcane in Cairns approximately 2900 young toads were released in Australia, after a while the group of Europeans discovered cane toads were unsuccessful at removing the cane bugs. Cane toads spread throughout Queensland, Cane toads have spread south and west and now cane toads can be found in Queensland, Northern Territory, New South Wales. Cane toads became were well known as an invasive species or pest. Cane toads eat bugs, ants, generally anything that could fit inside its mouth, most cane toads grow to 10-15cm long and females have been grown to 23cm colour ranges from grey to olive brown. They breed in slow moving water, females lay about 8- 35000 eggs a
Conodonts are composed of calcium phosphate and range in color from translucent light color to a black. Conodonts are believed to have been small marine invertebrates living in the open oceans and coastal waters. Although Conodonts remained a puzzle for years, they were they were Conodonts are classified in the class Conodonta which includes jawless fish through to jawed vertebrates in the Phylum Chordota. Clearly very little can be stated about the possible life cycles of conodonts since the host organism
Crustacea is a large subphylum of Arthropoda, consisting of almost 52 000 described species, including animals like crabs, lobsters, shrimp and barnacles. The majority of these are aquatic, living in marine or fresh water environments, though some have adapted to living on land like some crabs and woodlice. Most crustaceans are relatively small, though there are some exceptions. All of them have a hard, strong exoskeleton, divided into two parts, which has to be shed in order to allow the animal itself to grow. They have a large circulation system, where blood is pumped around the body by the heart. Only some crustaceans have sexes separate, and those that are usually mate seasonally and lay eggs. The study of Crustacea is called carcinology.
Have you ever wanted to slap eight people at once? Or if you're more of a mushy, touchy, feely person, have you ever wanted to hug eight people at once? An octopus can do either or both of these if they want to! So you know an octopus is lucky being able to do this but what's an octopuses habitat? Since they can slap eight things at once do they have predators? Or since we're on the facty facts subject where do they live?
Most animal phyla originated in a relatively brief span of geological time, however the diversity among them is extraordinary. Every organism is very unique and detailed in certain ways, comparisons of certain types of organisms can be very difficult. The class in which will be compared is that of the invertebrates. The main difference between coelomate and acoelomate body plans is that coelomates have a true coelom, which is a fluid-filled body cavity completely lined by tissue which is derived from mesoderm. The purpose of this cavity is to cushion the suspended organs to help them prevent injury, enabling internal organs to grow and move independently from the outer body wall.
As urbanization continues to expand amphibian population are on a global decline. In many rural areas, the only wetland available for aquatic reproduction is artificial ponds. While some species are able to persist in such an environment the majority of amphibians are negatively affected. The introduction of non-native species along with habitat degradation affects the successful reproduction of these native amphibians. Therefore, an understanding of the relationship between these species and their habitat is essential for conservation. This research sets out to determine conservation priorities for pond breeding amphibians in the hopes of preserving their existing populations.
A cichlid is a derivative of the fish species that fall under the chordates phylum. They are a very intelligent and ...