Biology Articles

• Virology
  Viruses
  Microbes and More
  Infectious Diseases
  HIV and AIDS
  Microbiology
   
  

  Virus

  A virus is a microscopic particle that can infect the cells of a biological organism. Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own. At ... > more
• Evolutionary Biology
  Nature
  Fish
  Biology
  New Species
  Ecology Research
   

  Speciation

  Speciation refers to the evolutionary process by which new biological species arise. There are three main ideas concerning the emergence of new species (Modes of Speciation), each based on the degree ... > more
• Amyotrophic Lateral Sclerosis
  Healthy Aging
  Attention Deficit Disorder
  Sports Medicine
  Thyroid Disease
  Life Sciences
   
  

  Vocal folds

  The vocal folds, also known popularly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx. They vibrate, modulating the flow of air being ... > more
• Cell Biology
  Molecular Biology
  Genetics
  Microbiology
  Developmental Biology
  Biology
   
  

  Eukaryote

  A eukaryote is an organism with a complex cell or cells, in which the genetic material is organized into a membrane-bound nucleus or nuclei. Eukaryotes (also spelled "eucaryotes") comprise animals, ... > more
• Genes
  Biochemistry Research
  Human Biology
  Biotechnology
  Genetics
  Cell Biology
   
  

  DNA

  Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main ... > more
• Developmental Biology
  Molecular Biology
  Biology
  Biotechnology
  Life Sciences
  Agriculture and Food
   
  

  Organogenesis

  In animal development, organogenesis is the process by which the ectoderm, endoderm, and mesoderm develop into the internal organs of the organism. The germ layers in organogenesis differ by three ... > more
• Nervous System
  Neuroscience
  Perception
  Psychology Research
  Healthy Aging
  Developmental Biology
   

  Olfaction

  Olfaction, the sense of odor (smell), is the detection of chemicals dissolved in air (or in water, by animals that live under water). In vertebrates smells are sensed by the olfactory epithelium ... > more
• Tuberculosis
  Spiders and Ticks
  Healthy Aging
  Immune System
  Attention Deficit Disorder
  Lymphoma
   

  Necrosis

  Necrosis is the name given to unprogrammed death of cells and living tissue. It is less orderly than apoptosis, which are part of programmed cell death. In contrast with apoptosis, cleanup of cell ... > more
• Insomnia Research
  Insomnia
  Sleep Disorder Research
  Sleep Disorders
  Sports Medicine
  Nature
   

  Circadian rhythm

  A circadian rhythm is a roughly 24 hour cycle in the physiological processes of living beings, including plants, animals, fungi and cyanobacteria. In a strict sense, circadian rhythms are ... > more
• Brain Tumor
  Lung Cancer
  Cancer
  Ovarian Cancer
  Leukemia
  Colon Cancer
   

  Tumor

  Tumor (American English) or tumour (British English) originally means "swelling", and is sometimes still used with that meaning. Tumor meaning swelling is one of the five classical characteristics of ... > more

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