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...

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...

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...

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...

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...

Proof Of The Exsistence of God Either God exists or He doesn't. There is no middle ground. Any attempt to remain neutral in relation to God's existence is automatically synonymous with unbelief. It is far from a moot question, for if God does exist, then nothing else really matters; if He does not e...

As our technology continues to advance, new breakthroughs in medicine are discovered. With these new developments serious ethical and moral questions arise. Advancements in genetic engineering, reproductive technologies, cloning, organ transplanting, and human experimentation are all causes of ...

Almost 60 years ago the first antibiotics were developed, and they were created at a time when previously untreatable infections such as tuberculosis, gonorrhea, and syphilis could be almost miraculously cured. Infections like these could be a death sentence, and until recently they many be just ...

As our technology continues to advance, breakthroughs in medicine are discovered. With these new developments, serious ethical and moral questions arise. Advancements in genetic engineering, reproductive technologies, cloning, organ transplanting, and human experimentation are all causes of concern....