Unit 1 -man is high 50’s to 60% water -distribution in body divided into 3 compartments: 1) intracellular - 28 litres 2) intercellular/interstitial fluid - 11 litres - 80% 3) blood plasma - 3 litres - 20% -women contain less water than men -organisms can contain 60-80% water -bact...

Plants are unique amongst the eukaryotes, organisms whose cells have membrane-enclosed nuclei and organelles because they can manufacture their food. Chlorophyll, which gives plants their green color, enables them to use sunlight to convert water and carbon dioxide into sugars and carbohydrates; che...

Evolution, a process of change through time, is what links together the enormous diversity of the living world. A lot of evidence is present that indicates that the earth has had a very long history and that all living things arose in the course of that history from earlier, more simpler forms. In...

Cells are the basic living units of all plants and animals. The cell is the structural and functional unit of all living organisms. There are a wide variety of cell types, such as nerve, muscle, bone, fat, and blood cells. Each cell type has many characteristics, which are important to the nor...

Cell theory- all organisms are made of one or more cells and the products of those cells. An organism may be a single cell, such as a bacterium, or many cells organized to function together as in an animal or plant. In many celled organisms, there may be intercellular material made by the cells. All...

CELL STRUCTURE AND FUNCTION All living things are made of the same basic building blocks, cells. A human is made of 65 trillion cells. Cells are everywhere, on you skin, in your blood, and even on your tongue. In fact, your blood is clear but red blood cells are what make your blood red. M...

Living things make up the world as we know it. Living things are involved in our life constantly, seeing that we are alive. There are five characteristics that are common to all living things. Living things are made up of one or more cells. Each cell is made up of living matter and is separate...

Bacteria The two most basic types of cells are eukaryotic and prokaryotic. Animal cells fall under the eukaryotic classification while bacteria, which will be the topic discussed, fall into the prokaryotic classification. Bacteria have a wide variety of characteristics, which includes, cell stru...

The environment in which we live in is constantly changing. It is a valuable resource that should not be overrun by big business. Our environment is repeatedly tested to its limits by pollution from big businesses that continue to ignore regulations and laws. Business should not be allowed to cont...

Fireflies sparking on a summer's evening. Jellyfish glowing in night waters. These are examples of bioluminescence - light emitted by living organisms. Unlike incandescent light, which is caused by heat, the light produced by luminous animals and plants results from a biochemical reaction to oxygen....

FORENSIC SCIENCE Forensic Science, also known as Forensics, is the application of science to law to interpret clues for crime investigation. The earliest forensic scientists were physicians who were called upon to give an opinion as to the cause of death in individuals. Now most of the forensic ...

Extremophiles The term extremophiles is applied to groups of microorganisms that live and thrive in places where most living creatures could not survive. Extremophiles can be grouped into two categories; Bacteria, simple celled creatures whose cells lack a nucleus, and eukarya, whose cell...

The mitochondrion is an organelle found in eukaryotic cells (Tortora 1992). A mitochondrion can occur in different shapes inside one cell. Mitochondrion can be long, like a rod, and filamentous or compact, like a sphere, and granulelike (Wolfe 1993). There are approximately 1700 mitochondria in...

Genetic engineering has opened many doors for new sciences to develop. One such science is the research and alteration of the food we eat; this is commonly known as transgenic research. Whether through crops or agricultural animals, the common goal is to increase food surplus. Most of the GM (...

Diversity Essay American biologist R. H. Whittaker in 1959 described a classification system of five primary kingdoms: plants, animals, fungi, protists, and monera. Kingdom animalia cover all taxonomic kingdom all living or extinct animals, an example of an animal is a human. Humans thrive off...

Since the day when war and technology mixed together during these last centuries, each human being has been facing attacks with different kinds of weapons. One of the biggest threats of mass destructors in the world are biological weapons or also known as bio-weapons. According to dictionaries, a bi...

Like the fabric of time itself, Susan Griffin's essay "Our Secret" is an essentially non-linear piece of writing. However, the author creates cohesiveness by weaving core threads of meaning and intent. Passages that would otherwise be completely disjointed from one another: stories of the Holoc...

A FUTURE OF CLONING Let us discuss a future of cloning on animals and humans. We have heard about cloning for many years now. However, we did not know that they had actually been doing it, until they successfully cloned Dolly the sheep. What is cloning? Cloning is an organism, or group of ...

If your 15 year-old daughter found out she were pregnant, as a parent, would you support an abortion? What if your father had to be keep alive with tubes and machines? Do you want adesigner baby?? If a criminal took the life of a family member, would you want him to die? All these life issues of...

Anthropology- the study of humankind everywhere, through time, seeks to produce reliable knowledge about people and their behavior, both about what makes them different and what they have in common. What They Do- Physical anth- study humans as biological organisms, tracing there evolutionary devel...

What is life?" The question has been asked innumerable times but has been answered to the satisfaction of few. Science is based on the experience that nature gives intelligent answers to intelligent questions. To senseless questions, nature gives senseless answers - or no answers at all. If nature h...

Bacteria - Oldest, structurally simplest, most abundant forms of life - Only organism with prokaryotic cellular organization - The only members of the kingdom Monera (4800 different kinds) - Characteristics change depending on growth conditions - Maintenance of lif...

Genetically modified crops are appearing on the farms of the United States more and more every day, even though consumers may not know it. The good news is that these crops are planted because of their benefits to people. For example, according to the American Medical Association (AMA), "More than ...

CH 9 Archaeobacteria-prokaryotic organisms lacking peptidoglycan in their cell walls and differing from eubacteria in many ways. Binomial nomenclature-by Linnaeus where each organism is assigned a genus and specific epithet (2nd name) Cyanobacteria-photosynthetic, prokaryotic, typically uni...

I grew up in a time and place where faith existed but was never questioned. After all, when you're a kid, adults tell you that Santa Claus, the Easter Bunny, the Tooth Fairy and God are all real. And that believing in them would get you gifts, baskets of candy, money, and someone who could help you...