This chapter focuses on the principles of biology. Biology Is the scientific study of life. A notable contradiction to science Is pseudoscience which Is something that sounds selecting but Is not based on complete evidence. Life encompasses a wide variety of things, but all life has a set of seven characteristics which are order, regulation, growth and development, energy processing, response to the environment, reproduction, and evolution. Life exists in many levels ranging from the exosphere to molecules and atoms.
A cell is the lowest structural level that can sustain the activities required for life. Cells exist in one of two categories: prokaryotic or eukaryotic. A prokaryotic cell is simple, small, and lacking a nucleus while a eukaryotic cell is larger and more complex, containing many membrane-enclosed organelles. Biological domains further differentiate between kinds of cells. There are three major biological domains, two of which are classified for prokaryote and the other for eukaryote. They are Domain Bacteria, Domain Archie, and Domain Eukaryote.
Evolution Is also a major theme In biology. Evolution Is the concept of life evolving over the course of time. Charles Darwin Is responsible for the concept of evolution through natural selection. His idea of natural selection was about the adaptation to the environment over time by populations in order to survive. Discovery science and hypothesis driven science are the two main processes of science. Scientists follow the scientific method to test their findings. Theories and scientific saws sometimes result from many repeated experiments.
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A theory is a comprehensive explanation while a law is a more a generalized description. The basis of science requires that experiments be repeatable, as scientists repeat each other's experiments to check for verification. This is why It Is very important for scientists to be honest with their observations and results. Correlations occur when events occur together In time and space. It Is very Important to know that correlation does not always equal causation. A controlled experiment Is needed to prove a relation.
This includes a control and experimental group. As science has advanced, technologies have advanced as well to help us apply or take advantage of said scientific advances. Positive and negative things have come about from the mix of science and technology. A positive result has been the use of DNA in criminal court cases. A negative result has been the deforestation and toxic wastes caused the growth in population. The information regarding the resistance that certain bacteria may be developing towards antibiotics is particularly interesting to me.
This will also be relevant to me not only as I may probably be more careful with any future antibiotic Intake but also as I will be entering the health field and will need to be aware of this. As a nurse I might need to administer antibiotics or monitor or read patients bacterial count. By the time I become a nurse, In a couple of years, this has the possibly of becoming a larger Issue (hopefully not! ) and their might need to be extra precautions that I will need to inform patients of as well as general health.
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