Biology Commons^™

The Effect Of Concentration Of Co2 On The Average Rate Of Photosynthesis In Spinach Leaf Disks, Amelia Robinson-Brown

Journal of the South Carolina Academy of Science

The purpose of this experiment was to determine the effect of carbon dioxide concentration on the rate of photosynthesis in spinach leaves. Small circular disks were cut out of the spinach leaves using a standard hole puncher. Then solutions of differing concentrations of carbon dioxide, 0.2%, 0.4%, 0.6%, 0.8%, and 1.0%, were all prepared, and each solution was spread equally among five cups. There was also a control solution that contained only water. Any gases within the leaves were then sucked with a syringe, using a specific technique to create a vacuum. For each solution of differing carbon dioxide concentration, …

Documentation Of Infanticide And Cannibalism In Bald Eagles, A. C. Markham, B. D. Watts

Arts & Sciences Articles

"Non-kin infanticide, the killing of dependent young by unrelated conspecifics, occurs in a wide array of taxonomic groups including mammals, insects, fish, and birds (Hrdy 1979, Hrdy and Hausfater 1984). Several hypotheses have been proposed to explain this behavior including the removal of potential competitors to gain access to limited resources such as nesting territories and food (Hrdy 1979)..."

The Ethical Considerations Of Physician-Assisted Suicide, Madeline Jordan

Dialogue & Nexus

With respect to physician-assisted suicide, several approaches to adjudicate an ethical position can be processed from the theories of utilitarianism, Kantian deontology, and virtue ethics. This paper will explore these three positions with respect to physician-assisted suicide and the pros and cons of each. In conclusion, based on my research and Christian beliefs, I will define why I reside with virtue ethics and why it leads me to a position that is against physician-assisted suicide at this particular point in my life.

Improving Methods To Estimate Time Of Death From Body Temperature, Carly Berdan

Theses

By protocol, ambient and body temperatures are collected at every investigated death scene. These data has been used since 1839 to estimate the time of death, a crucial factor when it comes to cases of unnatural deaths and homicides. The Glaister Equation and Henssge's nomogram, commonly used to calculate estimated time of death, are inconsistent and often do not agree with each other. Therefore, my objective was to evaluate and improve them.

I collected data in the field and consistently measured temperature data. Furthermore, I was granted access to a database of every death in New Jersey and published data. …

Love: A Biological, Psychological And Philosophical Study, Heather M. Chapman

Senior Honors Projects

The concept of love has been an eternally elusive subject. It is a definition and meaning that philosophers, psychologists, and biologists have been seeking since the beginning of time. Wars have been waged and fought over it, while friendships have been initiated and have ended because of this idea. But what exactly is love, and why is it important to define this enigma?

In order to help define this idea of love, several books and numerous research articles were consulted, and interviews were conducted with faculty of The University of Rhode Island. Dr. Nasser Zawia was interviewed, in order to …

Introduction To Environmental Science, Donna Bennett, Allison Vandevoort, Caralyn Zehnder, Christine Mutiti, Kalina Manoylov, Samuel Mutiti

Biological Sciences Open Textbooks

Authors' Description:

This course uses the basic principles of biology and earth science as a context for understanding environmental policies and resource management practices. Our planet is facing unprecedented environmental challenges, from oil spills to global climate change. In ENSC 1000, you will learn about the science behind these problems; preparing you to make an informed, invaluable contribution to Earth’s future. I hope that each of you is engaged by the material presented and participates fully in the search for, acquisition of, and sharing of information within our class.

Environmental Science Laboratory (ENSC 1000L) is a separate class and you …

One Step Closer To A Better Starling Trap, James R. Thiele

Human–Wildlife Interactions

European starlings (Sturnus vulgaris) are an invasive species in the United States that damage agriculture, personal property, and threaten human health and safety. The U.S. Department of Agriculture Wildlife Services provides technical support to mitigate damage by controlling starling populations at concentrated animal feeding operations, landfills, utilities, and urban areas. Wildlife Services uses DRC-1339, a registered toxicant, to reduce starling populations. Trapping can also be an effective tool but requires more time at a higher cost than DRC-1339. Trapping starlings, however, may be needed to provide a viable alternative to mitigate damage in areas where toxicant use may …

Diversidad Y Usos De Especies De Cucurbitáceas (Cucurbitaceae) Silvestres Y Cultivadas En El Departamento De Casanare Orinoquia Colombiana, Adriana Carolina Amaya Salamanca

Biología

Las cucurbitáceas pertenecen a una familia de plantas representativas y diversas de las zonas tropicales y subtropicales, en Colombia podemos encontrar alrededor de 28 géneros y 92 especies, la mayoría de ellas son de gran importancia a nivel económico, ecológico y social ya que se ha generado un comercio industrializado de sus frutos y semillas dado el papel que representan para la alimentación humana. Teniendo en cuenta la alta diversidad de especies en esta familia, en Colombia son escasos los estudios a nivel regional que valoren su presencia en lo s ecosistemas y sus potenciales usos. Un caso en particular …

La Diversidad De Los Análisis De Diversidad La Diversidad De Los Analisis De Diversidad [The Diversity Of Diversity Analyses], Victor D. Carmona-Galindo, Tizziana V. Carmona

Biology Faculty Works

There is a lack of consistency with respect to the use of the terms like species richness, diversity and biodiversity, which extends to the analysis of diversity indices and the merit of using diversity indices in the evaluation (comparison and contrast) of biological communities. The purpose of this article is to provide working definitions for these terms and cite examples from the primary literature that demonstrate the utility of estimating richness, evaluating proportional abundance patterns, as well as comparing indices of diversity and similarity to study patterns of biological organization at different ecological scales. Additionally, we provide a manual in …

Xenotransplantation:The Science, The Advantages, The Ethics, Chana Erlbaum

The Science Journal of the Lander College of Arts and Sciences

Xenotransplantation is a breakthrough medicinal technology that is an attempt to change the lives of millions of people. The problems in the current organ transplant system risk the lives of patients each and every day. Intense waiting periods and extremely costly procedures exemplify the stress and pressure that these patients face as an attempt to save their own lives. Xenotransplantation is the idea of growing human organs in a different species, using incredible stem-cell and CRISPR technology. This can introduce an answer to some of the issues in the current transplant system. Many technical and ethical issues are becoming relevant …