Essays and Research Papers on Biology

A 7 page research paper that discusses the "numbers" of pregnancy. One way to look at human fetal development and pregnancy is to consider the mathematics involved. From "calculating due dates to weighing the risks of birth defects," pregnancy involves a plethora of numbers, calculations and exponential growth (O'Brien 56). These numbers are discussed. Bibliography ...

A 4 page critique of an article reporting a possible synergistic effect of certain chemicals on mammalian reproduction. Bibliography lists two sources.

A 12 page overview of polychlorinated biphenyls (PCBs) and their adverse impact on the reproduction of both humans and other animals. Bibliography lists 14 sources.

An 8 page overview of Schwann cells and their relationship to axons. Illustrates that Schwann cells are supportive in nature to the neural axons and that each is critical in the passage of information between cells. Bibliography lists 7 sources.

A 6 page examination of the differences between red and white meat. Emphasizes differences in muscular structure and in the relative presence of iron. Discusses striated and smooth muscle tissue as well as myoglobin and its function in the physiology of animals particularly in the supply and transport of oxygen. Bibliography lists ...

A 6 page overview of the enzyme catalase, its function in both the living organism and as an isolated form in commercial applications. Bibliography lists four sources.

A 5 page examination of the proteanaceous infectious particles which are responsible for the degeneration of brain cells. Concentrates on the replication of these proteins which, unlike living organisms, reproduce in the absence of any genetic material. Bibliography lists 4 sources.

A 5 page overview of the anatomical makeup and function of these components of our nervous system. Bibliography lists 1 source.

A 5 page overview of Equine Protozoal Myeloencephalitis, its life cycle and its effect on horses. Bibliography lists five sources.

A 5 page overview of the adenoviruses with a particular emphasis on research concerning aviadenovirus, the adenovirus which infects domestic chickens, ducks, turkey, quail and other species of fowl. Bibliography lists 4 sources.

A 5 page paper that describes the origins and development of bovine spongiform encephalopathy or mad cow disease. This paper provides an overview of the disease and also considers its impact on the development of CJD in humans. Both are related to the epidemic in England in the early 1990s. Bibliography lists 6 ...

8 pages in length. An in-depth discussion of the problem of cow ticks and their biological manifestation. Social, health, and economic implications are explored against a scientific background. Bibliography lists 6 sources.

A 5 page overview of seed dormancy. Relates the importance of dormancy to sustaining the population and to the evolutionary development of a species. Bibliography lists 4 sources.

A 5 page paper on how floral color affects the activity of plant pollinators. Studies show that the color changes that a flower undergoes as it ages has a direct affect on the insect pollinators. Bibliography lists 3 sources.

This 5 page paper provides a detailed description comparing plant physiology, morphology, and ecology of plants of two regions: Sonoran and Sahara Deserts. This paper provides some generalized information on desert conditions and plant physiology and then demonstrates the variations related to the plants studies of both of these regions. Bibliography lists ...

5 pages in length. In this particular scientific analysis, the researchers sought to either prove or disprove the incidence of short-petjolule type soybean plants relative to that of a recessive gene that exists within the hereditary composition. Bibliography lists 1 sources.

This 6 page report discusses the interaction between alfalfa crops and a common weed. The weed chosen for examination is Barbarea vulgaris, most commonly known as 'yellow rocket.' Yellow rocket is usually biennial or perennial with some plants flowering, setting seed and dying after their first growing season; reproducing only by seed but the ...

A 15 page scientific report regarding the germination rates of two species of fleabanes, Oregon fleabane (Erigeron speciosus) and Piper's Daisy (Erigeron piperianus). Provides information regarding the distribution and ecologies of the two species, their importance from both agricultural and ecological standpoints, and information (based on the unpublished work of Ronald J. Burkey at ...

A 5 page review of thermoregulation in animals. Discusses the differences between ectothermia and endothermia in reptiles, fish, mammals and birds. Discusses animals classified as poikilothermic, having a body temperature which fluctuates widely, and those classified as homeothermic, having a narrowly constricted body temperature range. Includes a representative graph of these variations ...

This 4 page paper provides an overview of the basic elements of bat echolocation as an process that is separate from the auditory and visual receptive capabilities of other mammals. This paper considers the prevalent biological structures and other components of bat physiology that determine the capacity for echolocation, also known as sonar. ...

A 14 page literature review of brood parasitism among the common cuckoo (Cuculus canorus). Explores the concept of whether genetic makeup determines host preference or if this phenomena is really a result of the mature bird seeking out habitat in which it was raised and consequently encountering more nests of a specific species in ...

A 7 page overview of the role of the central nervous system in motor functions. Specific information is provided about such components of the central nervous system as the cerebral cortex, basal ganglia, and neurons. Bibliography lists 10 sources.

A 6 page overview of osmosis in the living organism and in industrial applications such as desalination, sewage treatment, and groundwater treatment. The term osmosis is used to denote the process by which liquids move through a semipermeable membrane. Bibliography lists five sources.

An 8 page research paper on prey-size selection as it relates to spiders. A number of relevant concepts are examined including : aggressive mimicry, pirate spiders vs. web-invading araneophagic spiders, the role of mimetids, and more. Bibliography lists approximately 20 sources.

A 10 page overview of the insects, their benefits and adverse impacts to humans. Emphasis is placed on their status as disease vectors. Bibliography lists five sources.