Protists are members of Protista, one of the five main kingdoms of organisms. They are eukaryotic, multicellular and unicellular creatures that are either microscopic or very large in size, and are found in moist and marine environments. Being mostly micro in size, 5 micrometers to 2 to 3 millimeters is the prevalent size for protists. Despite not being categorized in any other animal kingdoms due to their complex structures and heavy diversity, they still are very much like fungi, animals and plants in their characteristics (Corliss, "General Features"). Talk about how due to a great diversity, protists are classified in many different ways, and how the divisions are sometimes grouped together. Algae, Protozoa and Slime molds are the subclasses into which protists are categorized on a broader scale ("MicrobeWorld"). Algae are plant-like, protozoa are animal-like, and slime molds are fungi-like. Protists are categorized like this based on the way they eat (Carter, "Protista"). There are 10 Divisions in the Kingdom Protista. 4 Divisions are of protozoa, 5 Divisions are of algal proti...
Phylon 49.3/4 (2001): 173. Academic Search Premier -. Web. The Web. The Web. 20 Mar. 2014.
The “water bear” is a common name for a group of a little over 100 genera of protozoans grouped under the Phylum Tardigrada and is a relative of the Phylum Arthropoda. The phylum Tardigrada contains over 1000 species, and is grouped into three classes. There are two main classes the Heterotarigrada ad the Eutardigrada. The last is the Mesotardigrada and contains only one species, that was discovered in a sulfur spring in Japan 1937, and has not been seen since. “Water bears” are, as with most species, separated into groups by characteristics and more recently molecular genetic methods. The Heterotarigrada are known mainly for their hair like tufts on appendages and hard-undivided flattened scales. The Eutardigrada are known as “naked tardigrades” because they lack the hard scales or have several separate plates. Tardigrades are then divide further into orders by comparing groups for cuticle appearance, feeding tube, claws, and other defining features (Michalczyk, 2014).
Brachiopod: One organism that is a part of the Lophophore is the brachiopod. Brachiopods are marine animals that look like claims. Actually they are quite different from claims in their anatomy, related to the bryozoan and phoronida.Brachiopods is very rare in the seas. They often make their homes in very cold water, either in Polar Regions or at great depths in the ocean, and are not often encountered. There are about 300 living species of brachiopods.250 million years ago; they were in the wo...
In the play, Othello, by Shakespeare, there is a ferocious war going on. However, it is not the bloody war against the Turks that the audience anticipated. It is a more dangerous war than that: a psychological war that uses a person’s emotional state of mind and biggest fears against them. At the hands of all this is Iago, who stands by and watches his genius at work. Iago’s passion of war is what drove him to commit his acts of treachery, not his jealousy of Cassio nor his loathing of Othello. When he could not set sail to Cyprus with the other soldiers and participate in the war, he found a way to start a new war, one that he could be the general of. Through manipulation, he is able to start a psychological war that ends in bloodshed. His manipulation is the driving force of the play.
The outer layer of a reef consists of living animals, or polyps, of coral. Single-celled algae called zooxanthellae live within the coral polyps, and a skeleton containing filamentous green algae surrounds them. The photosynthetic zooxanthellae and green algae transfer food energy directly to the coral polyps, while acquiring scarce nutrients from the coral. The numerous micro habitats of coral reefs and the high biological productivity support a great diversity of other life.
In the kingdom of Fungi, is a collection of different organic multicellulary eukaryotic organisms. Fuguses are unique from any other life form. They grow in the wild yet they are not plants. They also breakdown and digest animals and plants alike, but they are not animals. Fungi are made up of chitin, a derivative of glucose that is also found in cephalopods, arthopods and crustaceans alike. Similiar to cellulose which is a what plants' cell walls are comprised of, Chitin is a tough material that gives the Fungi its structure.
Soft corals are grouped in the phylum Cnidaria, class Anthozoa, and order Alcyonacea. Their distinguishing characteristic is that their polyps always bear eight tentacles which are on both edges fringed by rows of pinnules (Fabricius and De’ath, 2002). The common name “soft coral” comes from the fact that they have no massive external skeleton as compared to the more commonly studied hard corals.
The term taxonomy is used for the classifi-cation of living and once-living organisms. Taxonomy also refers to "scientific classification" or "biological
They also describe microbes as organisms that are often too small to be seen without the aid of a microscope. Microbes, also known as microorganisms, can be broken down into four classifications that are bacteria, viruses, fungi, and protozoa.
Porifera is the most simplistic phylum under the kingdom Animalia. The sponges have no tissue layers, but instead an interior and exterior layer with a gelatinous middle layer that separates the two. They are the only phylum with asymmetrical symmetry. Throughout the advancing phyla it will be shown this trait is lost. Porifera lacks a proper digestive system, but a canal system allows the sponges to filter feed. Along the inside of a sponge, flagella pump water through the sponge’s body. This process brings in oxygen and other small organisms and then flows out the top of the sponge, the osculum, removing waste by diffusion. Sponges lack a circulatory system, as does many of the first couple of phyla. A coinciding factor could be their small size. A nervous system is also missing, but very basic nerve cells within the pores sense the water currents. Gas exchange occurs through these pores. Reproduction in sponges can be asexual by budding, gammation, or fragmentation. Some sponges can also have sexual reproduction occur as an egg gets released and fertilized in the open water by free floating sperm. After this stage they cling onto rock and begin their sessile, basic, life....
Organisms are often divided into three major groups: producers, consumers and decomposers. Each group plays a critical role in the food chain, and life would not exist in the way it does now without any one of them. Producers are also known as autotrophs or primary producers while consumers are known as heterotrophs or secondary producers. Autotrophs can produce their own food from materials in the environment using light or chemical energy. On the other hand, heterotrophs rely on other organisms, either plants or animals, for their food source since they cannot synthesize their own food. Autotrophs, such as plants, algae and cyanobacteria, use either photosynthesis or chemosynthesis to produce energy. Most well known organisms of these autotrophs
It is a single-celled organism that is not visible to the human eye, which means it can only be seen with a microscope. Bacteria are classified as Prokaryotes. They make their own food from the sunlight and can absorb food from the materials that they live on.
Do you know how are the animals divided? Do you know how many kinds of animals are there?
Prokaryotes include several kinds of microorganisms, such as bacteria and cyanobacteria. Eukaryotes include microorganisms as fungi, protozoa, and simple algae. Virus cells often consist of just a nucleic acid either DNA or RNA in a protein capsule. Viruses are considered neither prokaryotes nor eukaryotes because they lack the characteristics of living things, except the ability to replicate (which they accomplish only in living cells).