Free Biology Essays and Papers

Biology is the science of living systems. It is inherently interdisciplinary, requiring knowledge of the physical sciences and mathematics, although specialities may be oriented toward a group of organisms or a level of organization. BOTANY is concerned with plant life, ZOOLOGY with animal life, algology with ALGAE, MYCOLOGY with fungi, MICROBIOLOGY with microorganisms such as protozoa and bacteria, CYTOLOGY with CELLS, and so on. All biological specialties, however, are concerned with life

Lab Report 1                              Principles of Biology 1(BIOL 100) Fall 2001                              Gerard Chretien Living cells perform a multitude of chemical reactions very rapidly because of the participation of enzymes. Enzymes are biological catalysts, compounds that speed up a chemical reaction without being used up or altered in the reaction. The material with which the catalysts reacts, called the substrate, is modified during the reaction to form a new product. But because

the same characteristics that make them part of the phylum Mollusca. These characteristics are a soft body, a mantle that secretes a shell, and a muscular foot. Gastropods are the largest class of mollusks and include snails and slugs. They have a single, coiled shell or no shell at all. Pelecypods, also known as bivalves, have two shells that are hinged together, such as clams and oysters. Cephalopods, like octopuses and squids, have a reduced or absent shell and use their muscular foot to move

Within the broader context of crime scene investigation, forensic biologists play the role of collecting and analyzing biological evidence in order to decipher exactly what happened at the scene of the crime, and who was involved (Forensic Biologist, n.d.; Forensic Science, n.d.). Much of the evidence collected by forensic biologists consists of both ecological and biological matter, including but not limited to: dirt, blood, teeth, insects, fingerprints, and saliva (A Simplified Guide to Forensic

Concepts and Methods in BiologyBiology RevisitedA. What is life?1. Experience and education refine our questions and our answers.2. Consider the meaning of "alive."3. This book is biology revisited. It will provide:a. Deeper understanding.b. A more organized level of understanding.B. To biologists, life reflects its ancient molecular origins and its degree of organization. Life is:1. A way of capturing and using energy and materials.2. A way of sensing and responding to specific changes in the

Synoptic Biology is the ability to apply general principles to unfamiliar data or situations. Modules 5 and 8 will test your understanding of modules 1, 2, 3, and 4 through synoptic assessment, which is worth more marks than the actual module content. To do well, you must understand the synoptic element. This booklet is designed to help you do so. 50% of the marks on the module 5 paper are synoptic, and 70% of the module 8 paper is synoptic. The questions in module 5 are general but require information

Biology of Mangroves One of the most unique and least understood environments found in nature is that of the mangrove. This ecosystem is found at the junction between land and sea. Author, Loren Eiseley (1971) wrote vividly about his encounter with a mangrove forest in the book The Night Country: A world like that is not really natural. Parts of it are neither land nor sea and so everything is moving from one element to anotherÖNothing stays put where it began because everything is constantly

Southern blot Various molecular biology methods are used to investigate the information of genomic entities from different origins. One of the core technique in the field is Southern blot, which is used to detect DNA molecules of interest among many other DNA sequences and to retrieve information about their identity, size, organization and abundance within a genome. The technique was named after its inventor Professor Edwin M. Southern, a renowned British molecular biologist who developed the procedure

There are many organisms that are served as a model for genetic research. In experiments, “by studying model organisms, scientists are learning more about how the brain functions and what drives behaviors like eating, sleeping, sex and even aggression” (“Using Model Organisms to Study Health and Disease”). The studies that are conducted on the animals or bacteria can be beneficial to finding behaviors, but also in human health. The research in human health, “this foundation of knowledge has led to

Synthetic biology is the genetic engineering of an organism in able to alter the characteristics, traits, and task that it is not naturally supposed to. The goal of synthetic biology is to create new life forms by inserting computer-generated DNA sequences into living cells, and then breeding them to produce offspring. Unlike biology and chemistry, which are meant to be understood, synthetic biology is used to change the way something works. "Whereas standard biology treats the structure and chemistry