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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..