Bio Mammal Essay

Submitted By westenbroek
Words: 669
Pages: 3
Open Document
Grace Westenbroek
Biology Enhanced, Kits
Due Wednesday, May 6, 2015
Mammals
Mammals are the most advanced of all animals by the way their body works.
Their digestive system, respiratory system, and circulatory system are much more complex than other animals in the animal kingdom.
One way the Mammals exhibit their exceptionally developed body structure is comparing their feeding and digestive systems to those of other animals. One of the simplest phylums of animals, the Porifera, hardly have any system at all. The animals like sponges depend on diffusion, and are called filter feeders. Their cells engulf microscopic food particles that move through the sponge and then use them for nutrition. Birds have a much more advanced feeding system than sponges, however it is not as advanced as a mammals. Each species of bird has its own specialized beak fitted for their preferred environment. However they have no teeth so the food that they eat goes down into their crop where it is moistened, and then sent to their gizzard to be ground up. Mammals, in their broad range of diversity, have much more interesting and different ways of feeding and digesting food. Some animals such as carnivores, have specialized teeth, like canines, and claws that allow them to kill their prey with ease, and their digestive tracts are able to handle the all meat diet. Then there are other animals that are herbivores that have flat teeth that are suited to chewing grasses and grains.
Their digestive tracts are able to handle an all plant diet because they contain an

enzyme that is able to break down the plant fibers. These advanced feeding systems in comparison to the simpler systems of non­mammals allow mammals to thrive more so than their non­mammal co­inhabitants.
Like their feeding systems, mammals also have a much more advanced respiratory system that those of other animals. For example the phylum of Cnidaria have no specialized system for their respiratory needs. They rely on diffusion to get the oxygen that they need in order to survive. Fish use fine filaments with capillaries, called gills, to get the oxygen that they need. Most pull the water through their mouths or their gill slits and then extract the oxygen from it. There are aquatic animals, however, that do not use gills, instead they have just developed their respiratory system in such a way that they are able to hold their breath underwater for extensive periods of time. An example of these are whales. Whales’ lungs work like human lungs, but humans can usually only absorbs about 15% of the oxygen they breathe in. Whales however can absorb up to 90%. Whales are able to store this extra
Show More

Related Documents: Bio Mammal Essay

Everglades Research Paper

The Everglades Rachel Thompson BIO 100 January 11, 2011 Connie Cassidy The Florida Everglades is the state’s most highly visited park in the state. The Everglades is also home to thousands of animals, reptiles, and plants. Many tourist travels just to get a glimpse of the many exotic reptiles. Although, the Everglades is very beautiful it’s also one of the most endangered parks in the state. The park is endangered from humans and land developments. The state has laws imposed to…

Words 1563 - Pages 7

Silent Spring - Rachel Carson Essay

offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources. ©1998-2002;…

Words 30115 - Pages 121

Animal Testing Synthesis Promptttt Essay

and test products. Carefully read the following six sources, then synthesize information from at least three of the sources and incorporate it into a coherent, well-developed essay that takes a position on whether animal testing is or is not necessary in the United States today. Your argument should be the focus of your essay. Use the sources to develop your argument and explain the reasoning for it. Avoid merely summarizing the sources. Indicate clearly which sources you are drawing from, whether…

Words 5301 - Pages 22