Since there are so many diverse insects and spiders on the planet, and scientist know they have not all been discovered, many people believe there are thousands that are not yet classified, and the entire class holds many millions of animals. Estimates place arthropods at about 80% of all known animals on Earth (Tatner). Within these four classes, the animals are broken down even further into numerous sub-classes.
Probably the most interesting thing about arthropoda is how diverse they are. They can live on land, underneath the ocean, and it the hottest deserts, and some even survive in the subzero temperatures of Antarctica. Some live in trees, some live on the ground, and some live underground. Their hard outer shell helps them survive, but so do their sensory organs, like their eyes and sense of smell. Some of them, like bees and flies, do not seem to be the same as beetles and spiders, but if you look closely, even these animals have the characteristics of arthropods. They have numerous legs, they have segmented bodies, and even they are covered with an exoskeleton, even though it is not as obvious as on other animals, such as beetles, crabs, and scorpions.
These animals are extremely important to the ecological balance of the planet. One reason is because they have adapted to live in so many different areas of the world. Another is because they feed on other insects, on just about anything in fact. They feed on vegetation, on each other (like spiders who eat flies), and on garbage and other debris, so they help keep down other insect populations, they clean up garbage, and they serve as food to other animals, fish, and birds. Many of them also pollinate plants and food crops (Ramel). Without...
Some of them are even important economic products to some areas of the world. Crabs and lobsters are some of the most popular seafood in the world, and so are shrimp. These are all members of this family. Many of these animals are poisonous to each other and some to humans. Many people are afraid of these animals and kill them when they come across them, but this study shows that these animals are important and valuable members of the world, and they serve a valuable purpose.
In conclusion, these members of the animal kingdom are some of the most diverse and interesting. They are the largest group of animals on Earth, and they help keep Earth's natural balance equal and safe for all. They are an important and valuable part of life on this planet, and just about everyone in the world encounters some of this phylum each and every day.
Kingdom: Animalia Phylum: Nematoda Part 2: Answer the following questions as they relate to the nine phyla in the assignment table. (Porifera, Cnidaria, Nematoda, Arthropoda, Platyhelminthes, Annelida, Mollusca, Echinodermata, and Chordata.) 1. Which phyla lack organs? What type of symmetry do they have? Porifera and Cnidaria lack organs. Porifera lack any symmetry hence these are asymmetrical while Cnidaria have radial Symmetry. 2. List all of the phyla that show cephalization. The phyla that show cephalization are
Living organisms are subdivided into 5 major kingdoms, including the Monera, the Protista (Protoctista), the Fungi, the Plantae, and the Animalia. Each kingdom is further subdivided into separate phyla or divisions. Generally "animals" are subdivided into phyla, while "plants" are subdivided into divisions. Kingdom of Protista Brown Alga Scientific Classification Kingdom Protista Division Heterokontophyta Phaeophyceae Orders Dictyotales Desmerestiales Fucales Laminariales (kelps) etc. The Brown algae are a large group of multi-cellular algae, including various sorts of seaweed. Their distinctive greenish-brown color comes from the
Structure of Animals Two animal phyla that can be compared and contrasted are Nematoda and Annelida. Nematoda are roundworms. There are more than 15,000 known species, with scientists estimating there may be as many as half a million species yet to be discovered (Waggoner, 2009). Nematoda have a worm-like appearance outside and a simple internal body structure. The phylum Annelida includes earthworms and their relatives, leeches, and a large number of
Mitosis vs. Meiosis Mitosis and meiosis are both processes of cell reproduction. Mitosis is the process by which eukaryotes reproduce asexually and also how multi-celled eukaryotes reproduce cells for bodily growth. Meiosis is the process by which eukaryotes sexually reproduce. Using humans as the examples, new humans are created by meiosis, but within the human, mitosis reproduces cells. Mitosis results in two identical cells, that is the two cells are clones of
In insects, the anterior portion of the heart, located in the abdomen, is extended into a tube, the aorta, which directs the blood forward as it goes out into the body cavity. Arthropods have a well-developed, mesodermal, ventral, solid nerve cord and well-developed sense organs. The body feature from which the phylum takes its name is the jointed appendages, which include antennae and mouthparts as well as walking legs. Arthropods
Biology Invertebrates: Echinodermata Phyla: What other phyla relies on "hydraulics" as part of their locomotion system? Arthropoda Phylum Cnidaria: How do medusa of Aurelia and Gonionemus differ in size, arrangement of tentacles, and shape of manubrium? Aurelia has tentacles that are evenly spaced around their center; they also have a single attached to a single tentacle bud. They are more circular in shape. The Gonionemus is narrow and has many tentacles. They are also small and are bell