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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The concepts of mate choice and competition over eligible members of the opposite sex in animals, including humans.
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Biologically-synthesized chemicals (or their derivatives) that cause growth suppression or death of bacteria. Other anti-microbials are often also considered under the class antibiotics these days.
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The study of the distribution, incidence, and potential control of a disease.
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a biopolymer mostly made from keratin, which grows from the skin. Hair is exclusively found in mammals.
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the study of organisms that lived in prehistoric times.
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Ionizing electromagnetic waves, usually harmful to most biological beings.
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Fluorescent microscopy uses the emissions of fluorescently labelled probes to generate an image.
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Fruits develop from the flower of plants and hold the seeds. They are the way of plants to distribute their seeds.
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A state in which an organism or a cellular system, as defined by its full set of functionality, ceases to exist (i.e., most of the functions are irreversibly lost).
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Questions regarding organic compounds required by an organism as a vital nutrient in limited amounts.
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A measure of how hot or cold something is, measured in degrees Fahrenheit or Celsius, or Kelvin.
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Questions looking for clarifications or definitions of biological terminology.
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The study of how biological life arises from inorganic matter through natural processes, and the method by which life on Earth arose.
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The process in which a protein folds into a three-dimensional shape to achieve proper functioning.
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Questions pertaining to the processes by which new species arise.
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a single-stranded RNA virus which reproduces in human CD4-positive cells, which are primarily T-helper lymphocytes and macrophages. HIV is the causative patho…
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The timing of key events in an organism's lifetime, including development, reproduction and death.
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enyzmes (usually derived from bacterial sources) which cleave DNA at defined "restriction" sites.
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The application of dynamic systems and game theory to evolving populations in biology, economics, and social sciences. It is particularly well suited for studying social dilemmas like the evolution of…
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The administration of antigenic material to stimulate the immune system of an individual to develop adaptive immunity to a disease.
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Questions pertaining to western blots, which are used for detecting specific proteins (sometimes called protein immunoblots).
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The genetic alteration of a cell resulting from the direct uptake, incorporation, and expression of exogenous genetic material from its surroundings.
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Copying the genome for the purpose of reproduction.
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Communal living, cooperation in care of young, and/or division of labor within animal species.
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Questions regarding the structure, morphology, and function of the human ear.
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Electromagnetic radiation, specifically the range of frequencies visible to humans ("visible light").
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Educated guesses about the structure and function of things that do not currently exist. Many 'what if' and 'why not' questions fit this category. Questions should be posed so that they can be answere…
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a molecular target for a chemical signal such as a neurotransmitter, hormone, or drug. Binding of the signal to the receptor initiates or modulates behaviour in the receiving cell.
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designed to prevent old damaged cells from mutating into neoplastic (cancer) cells.