what component of Earth’s atmosphere exists entirely as a result of photosynthesis?
Oxygen is primarily produced by photosynthesis. In the beginning, there was no free oxygen available
Oxygen is primarily produced by photosynthesis. In the beginning, there was no free oxygen available
Extracellular Fluid Definition Extracellular fluid, in biology, is body fluid that is not contained in
External Respiration Definition External respiration is the process of exchanging oxygen, carbon dioxide, and other
Experimental Group Definition In a comparative experiment, the experimental group (aka the treatment group) is
Exon Definition An exon is a coding region of a gene that contains the information
Exocrine Glands Definition Exocrine glands are cellular sub-structures, organs, in a body that provide a
Definition of Exergonic Reaction An exergonic reaction is a reaction that releases free energy. Because
Eukaryote Definition Eukaryotes are organisms whose bodies are made up of eukaryotic cells, such as
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Equilibrium Constant Definition An equilibrium constant, Keq, is a variable that describes a chemical reaction’s
Epithelial Tissue Definition Epithelial tissues are thin tissues that cover all the exposed surfaces of
Definition Epithelial cells line the surfaces of organs in the body and function as a