Locomotion

Comparisons of the foot and ankle of Chimpanzees and Homo sapiens sapiens show several distinct changes. These changes developed mainly due to the transition from quadrupedal to bipedal movement and becoming more terrestrial rather than arboreal. When researching different hominids in chronological order, it is clear that each change in our foot morphology occurred at a different time in our evolutionary history, and not all traits are exhibited in extinct lines of Homo and other hominid…

Impact of technology on human’s critically thinking Technology is the most pervasive industry in today’s world and it has profound impact on people’s lives. The more advanced technology becomes, the more it seems to have control over their lives. In the essay “Does The Internet Make You Dumber?” by Nikolas Carr and “The Fakebook Generation” by Alice Mathias, the authors write that technology, especially the internet, distracts people deeply. It is detrimental for damaging people’s ability to…

Colobus Guereza Suborder: Halporhini Superfamily: Cercopithecidae Family: Colobinae Colobus Guereza, or the Mantled Guereza, is a member of the Colobinae family, which contains Old World, leaf-eating monkeys. We chose the species for a couple reasons. First, its mantle of white long, white hair, which is distinct and the source of its name. Second, it is one of the only Colobinae species present in US zoos. The Mantled Guereza is endemic to Equitorial Africa. It can be found in forests,…

CHARACTERS OF PRIMATES Introduction – The members of the order primate are characterized by having forward-facing eyes and very flexible fingers, legs and arms that assist them to lead an arboreal life which arefound allover the world. They have large brain in comparison to other mammals. They show a combination of primitive and specialized characters. They are primarily arboreal and return to land as a secondary condition…

mice making them the largest that exists to this day. They are equipped with ever growing cheek teeth that replace what has been ground away. One in such mammal depicted within the video was the Kangaroo Rat. They have a quite interesting form of locomotion where they hop much like a kangaroo. Kangaroo Rats have extraordinary hearing, which is an important aspect of their survival in the wild. They as well have large cheek pouches on the outer surface of their cheeks that they use to carry seeds…

The human skeleton performs many functions in the human body. It supports the body and covers soft internal organs which would otherwise get easily damaged. It provides locomotion, even though muscle contractions are needed for movement, bones are what actually moves the body in various ways and are attached to skeletal muscle. The skeleton helps a human being run, walk, swim, etc. The skeleton also takes part in the production…

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…

along the body from segment 15 (where sperm ducts are also located) to the clitellum, which looks like a tube surrounding the earthworm’s body and is closer to the anterior end. 4. The setae are likely on the outside of the body for more effective locomotion. They allow the earthworm to grasp onto the soil as its muscles contract, moving it forward. The setae’s grip also prevents predators from snatching the earthworm off the ground. If the setae were located on the inside of the body, the…

With increasing populations the number and proportion of older Australians are also expected to increase. Stroke is identified as a frequent cause of disability amongst adults as in 2009, 375800 Australians experienced a stroke with 70% aged over 65 (Australian Institute of Health and Welfare [AIHW], 2013, p 15; Wist, Clivaz, & Sattelmayer, 2016). It is likely as the ageing population increases, so will the number of stroke cases (Wist, et al., 2016). There are two types of cerebrovascular…

Ophiothrix spiculata (a.k.a. spiny brittle stars) are the most diverse organisms in phylum Echinodermata that can be found in the ocean all over the world. They are spotted in many different colors such as orange, yellow, red, blue, black, or even tanned with reddish and white bands on their arms. Most spiny brittle stars have either round or star-shape body that are usually not larger than three centimeters. The body is called the central disk which consists of the dorsal shield (aboral side)…