Locomotion

ON PUFFINS AND THEIR OPTIMIZATION FOR DUAL LOCOMOTION BY B. SIDELL ABSTRACT -- Puffins, one of the few wing-propelled diving birds, are specialized into a specific niche. By balancing the optimization of their bodies for locomotion between the two media of air and sea water created a unique anatomy for a bird. The evolution of Auks, which includes the puffin, shows a mixture of characteristics similar to those of the ultimate diving bird, the penguin, and the large-winged flyers, such as the…

1.1 Caenorhabditis elegans (C. elegans) Caenorhabditis elegans is a free-living non-parasitic, non-infectious, non-pathogenic, transparent Nematode (roundworm). It has a full grown length of about 1mm, a life span of around 3 weeks and is found in temperate soil environments where it survives by feeding on microbes such as bacteria. [1] Consisting of about 1000 somatic cells as an adult, C. elegans is amenable to genetic crosses and produces a large number of progeny, at times even…

Comparative anatomy essay A study in comparison of Crocodilia to the major four vertebrate groups of mammal, bird, amphibian and bird and how these have evolved, and the differences between the groups and whether they are due to ancestry, development or adaptation. Crocodilians and birds are closest relatives in comparison to the major vertebrate groups as they share a common ancestor that existed around 240 million years ago. Crocodilians are reptiles having scaly bodies, breathing air and…

primarily found in humans. The placement of the foramen magnum indicated that this species had a human-like upright posture and implied that this primate had achieved bipedal locomotion, instead of quadrupedal locomotion of apes. Dart’s claim was rejected by the scientific community in belief that in order to achieve bipedal locomotion the species would require a larger cranium than that of the Taung Child’s skull. Criticism as to whether or not this skull was to be considered “the missing link…

1) What important information can be obtained from a neurologically-impaired patient while taking a thorough history? Important information that can be obtained during a thorough history of a neurologically-impaired patient is the speed of onset of condition and the pattern of progression. The patient can describe the symptoms through each stage of the onset from acute, subacute and the chronic stage. The pattern of progression can be found with the patient determining whether there symptoms…

In this lab, an experiment was done in order to test how the abiotic factor of temperature affects a Tenebrio molitor’s activity level. Both experiments conducted consisted of two separate treatment trials; one in a warm environment (25 C) and one in a relatively cold environment (14 C). Results obtained from these experiments both showed a higher level of T. molitor activity in warmer environments as opposed to the cold environment where less activity occurred. In this case, the activity level…

triploblastic, protostomes, and have bilateral symmetry. Mollusks have coelomate coelom, mesoderm lines the organs and body cavity. Phylum Mollusca has distinct features, such as a visceral mass, a muscular foot, and a mantle. The muscular foot aids them in locomotion and capturing food. In some cases, like class Cephalopoda, the foot evolved into tentacles. The mantle helps secrete the shell that some animals in certain classes have. In the class Bivalva, animals have two lateral shells…

Borneo and Sumatra. Their habitats include multiple tropical rainforests. There is an abundance of trees in the habitats of orangutans since they are highly arboreal animals, spending more than half their time in trees. Orangutans exhibit suspensory locomotion through using their exceptionally long arms to swing from branch to branch while moving through the trees. Their hands and feet are long and narrow with opposable thumbs and big toes, assisting…

changes. Because of these heat changes the shark can maintain itself for more than a month on a single large meal. Speed of locomotion plays an important role in an animal’s biology and ecology and is of particular interest in aquatic animals, especially in the white shark. In many animals, locomotion is the primary cause of energy expenditure. The average rate of locomotion is often correlated with metabolic rate which means the speed at which the shark moves through its environment…

Jason Ramdat, Lab Essay #2, Lab Code 1B, 12/8/14 Vertebrates’ forelimbs are anterior appendages of animals that are in the subphylum vertebrata. There are several bones that makes up a forelimb includes the radius, ulna, humerus, carpal, metacarpals, and phalanges. The humerus is a single heavy bone which articulates with the body and forms the foundation of the limb; the radius and ulna are lighter and provides support in addition to a greater range of movement (AMNH Plaque). The carpals,…