Cnidaria

Comparison between Non-Cephalized Phylum Porifera and Phylum Cnidaria Kenneth Ng, A0125933E, Group A05 In the Animalia kingdom, many different phylum emerged over a long period of time due to evolution. Each phylum exhibit different characteristics which the multicellular animals have developed to adapt to the environment for survival. Examples are such as developing the ability to move from water to land and from land to water, apart from being sessile. There are also developmental structures of

There are more than 11,000 species of Cnidarians and the diversity among them is striking as this phylum includes organisms from corals to sea jellies (Pechenik 2009). This groups defining characteristic is that all included have nematocysts or cnidae, which are very complex specialized stinging cells (Technau & Steele 2011). Many species of both shallow and deep-sea Cnidarians bioluminesce, with the exception of the family Cubozoa. This leaves the 3 families of Cnidarians: hydrozoa, scyphozoa and

The Florida Reef provides many benefits to our world. The coral living in it are part of the phylum Cnidaria which a group of invertebrates. Though it may provide many benefits to us, we provide many dangers to it. Our debris and overfishing can damage the Florida reef along with many other coral reefs. Not only that, due to over excessive tourists and their recklessness, we are endangering the Florida Reef even more. So how can human action improve the ocean ecosystem that is the home to the many

Sea Pens Description Sea pens are colonies of polyps( polyps: animals that have a fixed base,column like body, with mouth and tentacles.). Each polyps resembles a feathery quill. Sea pens are bilateral (bilateral: being able to divide into even halves). There is no typical weight for sea pens, but the height ranges from 2 inches to 6 feet. Sea pens have various colors. Their colors range from dark orange, yellow, and white. Habitat Sea pens are octocoral, which means they are a type of soft coral

soft, gelatinous aquatic animals with what looks like an umbrella for a head. Powerful tentacles filled with deadly toxins in a painful sting. These neon creatures are classified in the subphylum Medusozoa, which forms a large part of the phylum Cnidaria; though not all Meduszoa fall under the jellyfish species. Overwhelming amounts of jellyfish are found in every ocean, all over the earth. Science points towards them being the oldest multi-organ animal. Crazy, right? Such a wondrous animal being

creature is also less officially known as a Cabbagehead Jellyfish – which also derives from its resemblance. The Cannonball Jellyfish is a member of the Jellyfish family. A jellyfish is a marine invertebrate belonging to the Schyphoan class of the Cnidaria phylum. A fully matured jellyfish possesses a medusa body form, meaning that their body is shaped similarly to an umbrella or a bell. Given that there are over 200 species of jellyfish, they all have unique shaped bodies. Though there are so many

The class of Gorgonia falls under the Kingdom Animalia and Phylum Cnidaria. Life starts for a Gorgonia when a larvae settles on hard surface in the ocean and begins to grow in a polyp. Polyps grow on other polyps indefinitely, which in the end creates the various shapes of a Gorgonia body. Gorgonias are asexual, so they reproduce by the means of fragmentation/cloning. These creatures do not have a reputation for living long. They are short lived and typically do not die of old age; they die from

bleached by these disasters are not completely hopeless. There is a possibility to reverse coral bleaching if watched and treated carefully. Although having a plant like appearance, corals are marine invertebrates in the class Anthozoa of the phylum Cnidaria. There are

Porifera This phylum consists of animals such as sponges Characteristics Symmetry Asymmetrical- No symmetry is shown in the body shape Number of tissue layers developing from embryo They do not contain tissue layers but do have specialized cells. A sponge’s body consist of three layers. Inner layer- circulates water within the body cavity Outer layer- protective layer, pores close to block off harmful substances that may approach Jelly like substance found between the inner and outer layer

Organism Physiology The course in which different kinds of living organisms are thought to have developed from earlier forms during the history of the earth is defined as Evolution. Many time organisms evolve due to environmental changes. To better understand evolution this paper will review a diagram of an organism and explain how the organism has evolved physiologically to become suited to fit its environment. Organism To understand the evolution of an organism it is important to understand