Essays on Living Organism

Psychology

Stress is an inevitable part of everybody’s life. There is no such person that has never experienced stress. In this essay, we are going to talk about types of stress and try to explain why it emerges. In addition, we are going to discuss the ways of coping with it.

Definition of stress

We often meet with this concept in our lives. We often say to ourselves, our life is a series of certain stress. It is important to understand that everything that is new can cause stress in our lives. So what is stress itself? Stress is a feeling of ...

Trace elements refer to chemicals that form parts of important enzymes found in the body of a living organism occurring in minute amounts, less than 0.1% by volume (Anonymous, 2015). Trace elements are available in the natural environment and play a critical role in the survival of all living organism. Individual elements attract molecules from the environment and convert them to various products needed by the organism. Examples of trace elements are iron, copper, zinc, manganese, boron, molybdenum, iodine, cobalt among others. However, the following paper analyzes only three of these trace elements namely, copper, iron, and zinc.

Copper

Introduction ...

Homeostasis refers to any self-regulating process by which biological systems attempt to maintain stability despite changes in the external and internal environment (Sturmberg & Martin, 2013). Biological systems interact with each other to maintain a suitable condition of the internal environment for the survival of the living organism. The biological systems of the living organism are in a state of constant change. The regulation of the systems within a given range of various conditions helps to keep the living organisms alive and healthy. The systems also interact with the external environment in different ways. The conditions of the external environment ...

Biology

(Department)

DNA and its importance in our lives

Introduction Deoxyribonucleic acid (DNA) is a long linear polymer located in the nucleus of a cell. It is developed from nucleotides and shaped like a double helix. It is related to the transmission of hereditary information from one generation to the second generation. DNA contains the information for the development as well as reproduction of an organism, thereby leading to a normal life. In the year 1953, James Watson, a biologist, and Francis Crick, a physicist, discovered the structure of DNA in a laboratory in England (LEROY, 2003). The structure of DNA helped scientists to know the process ...