Flatworm

animals who eat both plants and other animals are; humans, pigs, bears, and crows. Depending on what their diet and structure is, animals will have a different digestive system. Invertebrate’s digestive system are bags or tubes. For example, flatworms such as planarians, contain only one opening that serves for both…

The Animal Book Chapter 1: Animal characteristics Chapter 2: Body Parts Body plans refer to similarities in development, structure, and function among members of a particular group (phylum). At some point, members of that group share the same body plan during their development process. Which could be a possible explanation for shared structural plans that have been observed in the anatomy and embryology. Timing, pattern, and scale of development determine the organism's shape, and closely…

Planarians are triploblastic acoelomates, meaning they have three tissue layers, ectoderm, mesoderm, and endoderm (Newmark and Alvarado, 2001). Their epidermal layer that surrounds the planarian is ciliated on the ventral surface (Newmark and Alvarado, 2001). Underneath the epidermal layer and the basal lamina, followed by a complex wall musculature that surrounds the body. The complex wall muscle is composed of the circular diagonal and muscle fibers (Newmark and Alvarado, 2001). The nervous…

Benjamin Harouni Sigurdsen BISC 120 Lab November 2014 Modeling the regeneration of Gugesia dorotocephala: The window into human regeneration Introduction: The field of regenerative medicine aspires to control the ability to regulate the growth of organs and appendages. In order to control the growth and help those who suffer from injuries, defects and degenerative diseases, scientists must learn about the natural molecular tools that animals use to repair damage to their bodies. The medical…

American Alligators Scientific Classification Kingdom – Animalia Phylum - Chordata Sub-Phylum – Vertebrata Class – Reptilia Order – Crocodylia Family – Alligatoridae Genus – Alligator Species – A. mississippiensis Scientifically named as A. mississippiensis is at the top of the food chain as no other animal preys upon them except armed humans. They inhabit in fresh water swamps, marshes, river, lakes and canals. Can be found throughout the southeastern United States from the coastal…

of regenerating tissues is to limit damage and loss of infection. The processes of tissue regeneration include inflammation, wound repair, and remodeling. However, regenerating limbs is a more complex process that involves creating new cells. Flatworms Planarians have the ability to regenerate into a complete animal from tiny fragments of their body in…

Lynchel Brumaire DNA, the genetic code of all organisms, can help in the analysis of the organisms evolutionary history. All organisms, alive and extinct, descended from one creature. As time went on mutations accumulated in the DNA sequence of the progeny. By sequencing the genetic code of an organism in relation to another, their evolutionary history can be placed onto a phylogenetic tree. In this experiment, DNA barcoding was used to to identify a species and place it onto a phylogenetic tree…

Introduction Schistosomiasis is second only to malaria in the number of people the disease disables or kills around the world(LAPA***). It is a tropical disease that is a major source of morbidity and mortality for developing countries in Africa, South America, the Caribbean, the Middle East, and Asia (LAPA***). In these endemic areas, there are no resources for access of fresh drinking water and adequate sanitation. Therefore, human feces are the main source for spreading of Schistosomiasis.…

Fresh water lake ecosystems are very susceptible to invaders which degrade lake habitats and food webs. The Chinese mystery snail (Bellamya chinensis), referred to as Bellamya, is an understudied invasive species that is becoming more abundant in the fresh water lakes of North America and poses a threat to the ecological community of the Great Lakes. Understanding how Bellamya can effect lake ecology is critical to preventing the possible extinction of native snail species and the degradation of…

THE AMAZING CIRCULATORY SYSTEM The circulatory system preforms many different jobs. It carries oxygen to the cells of the body and it also caries nutrients throughout the body to make heat and energy. In addition to that, the vascular system delivers hormones to specific organs. Another thing the circulatory system does is collect metabolic waste and deliver it to the excretory glands. Lastly, the circulatory system works with the immune system to help fight infection and defend. The fact that…