The genes encoded in your DNA result in the production of proteins that perform specific functions<span>within your cells. Various environmental factors and spontaneous events can lead to changes in genes.</span><span>These changes, called mutations, can lead to alterations in the structure and activity of the proteins your</span>cells use in their daily activities. In other words, changes to your genotype can result in changes to your<span>phenotype. We all have mutations in most of our body cells—yet we are, for the most part, normal and</span><span>functional human beings. </span>
Prior to the first true chicken, there were non-chickens. The DNA changes came about in cells housed in the egg. So the egg came first. In July 2010, British scientists, using a supercomputer, claimed to have come up with the final and definitive answer.
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Cells<span> are the basic units of life. </span>Cells<span> can exist by themselves, like bacteria, or as part of a larger organism, like our </span>cells<span>. </span>Viruses<span> are non-living infectious particles, much smaller than a </span>cell, and need a living host to reproduce. The genetic material of thecell<span> is DNA, a double stranded helix.</span>
ANSWER.
Explanation:
when one of the links in the food chain is no longer present the food chain breaks.sometime this can cause other animals in the food chain to disapper as well and the whole ecosystem can beome in balance or even colapse
