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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Questions related to the study of the distributions and changes of allele frequency in a population.
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For questions on the biochemical, physical, and mechanical functioning of humans in good health including their organs and cells.
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Any substance consumed to provide nutritional support for the body.
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a biological macromolecule made of nucleotides used in cells to convey genetic information to protein. RNA also plays a role in catalyzing certain biological reactions as …
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Questions relating to the study of birds.
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The study of blood, the blood-forming organs, along with blood diseases and their treatment.
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harnessed to assemble organic compounds (esp. glucose) from inorganic carbon dioxide.
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Questions regarding how the brain interprets information from the eyes. Consider using the "eyes" tag for discussion of eye anatomy, physiology and evolution.
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The study of the physiology and pathology of the heart and the cardiovascular system.
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Virology deals with the study of viruses, infectious entities that require the machinery of a host cell to replicate.
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The use of methods from the physical sciences to aid in the study of biological systems.
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The discussion of the anatomy and evolution of eyes. Consider using the "vision" tag for questions regarding how the brain interprets information from the eyes.
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Questions relating to biological theory or theoretical developments that deals with biological processes.
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The contractile tissue of animals derived from the mesodermal layer of embryonic germ cells.
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A mechanism of evolution that leads to non-random spread of genes due to the effect that genes have on reproductive success.
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Questions on the classification of biological organisms, and the methods used for classifying them.
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A change in an organism's genomic sequence.
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The area of physiology dealing with the production and effects of hormones.
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The study of animal behaviour.
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a method of replicating DNA exponentially from even a single molecule.
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The study of genomes, the entire set of genes in an organism.
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A single piece of DNA coiled and organized along with RNA and proteins found in the cell.
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The study of the structure of organisms and their parts.
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The set of actions performed by an organism within a given environment
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The process through which a biological organism grows to maturity. In certain contexts it can mean the changes the organism goes through over its entire lifetime.
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A selectively-permeable biological membrane that separates the interior of all cells from the outside environment.
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the doctrine of prevention, diagnosis and treatment of diseases and injuries in humans and animals. Health and medicine questions are off-topic unless dealing with the biology underlyin…
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The study of evolution with a particular focus on questions about the evolution of modern humans.
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A sub-discipline of evolutionary biology which involves the study of evolutionary relatedness between different organisms based on their molecular and morphological features.
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Study of the anatomy and organization of the nervous system.
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Questions related to mammals, animals that nurse their young, have a neocortex, and three middle ear bones.
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The study of the appropriate provisions required to sustain life in an organism or the provisions themselves.
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The study of the form and internal structures of plants.
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The scientific study of fungi.
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Questions about scientific journal papers, books or other written sources, or for requests for references.
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the process of growing and maintaining living cells in vitro.