|Adaptation, in biology, the process by which a living thing becomes better suited to its environment.
|The length of time an organism has lived or normally lives, or the length of time an object or material has existed.
|Albumin, a simple protein found in most animals and in some plants. Albumins dissolve in water and dilute salt solutions and coagulate (curdle or clot) in the presence of heat.
|Amino Acids, chemical compounds produced by living organisms. Many amino acids are the structural units of proteins.
|Biology, the science that deals with living things. The earth is home to a diverse range of living organisms.
|Evolution, as defined in biology, the continual process by which one form of life changes, or evolves, into another form.
Image: microbiology (image/jpg)
|Microbiology, the branch of biology concerned with microorganisms including viruses, bacteria, protozoans, and certain algae and fungi.
|Microorganism, or Microbe, an organism so small that it cannot be seen without the aid of a microscope.
|Mutation, in a general sense, any change in the genetic makeup of an organism; such a change usually causes the organism to have a trait not possessed by any of its ancestors.
|Osmosis, the spontaneous flow of a liquid or gaseous substance through a semipermeable membrane.
|Photosynthesis, the conversion of light energy into chemical energy in cells that contain chlorophyll, a green pigment.
|Protein, a large, complex organic molecule. Proteins are found in all living cells, making up about one-half of the dry weight of most organisms.
|Spore, a tiny reproductive body that is typically unicellular. Spores are usually produced asexually.
|Assimilation, in biology, the process by which plants and animals utilize foods in the building of living tissue.
|Balance of Nature
|Balance of Nature, or Ecological Balance, the balanced relationship of the plants, animals, and other living organisms that make up a natural community.
|Bioethics, the study of the ethical questions arising from biological (especially medical) research and technology.
|Biofeedback, a process in which a person can learn to influence certain bodily functions that scientists once believed were beyond conscious control.
|Biological Clock, a popular term for an internal regulator responsible for various cyclical responses in living things.
|Bioluminescence, the production of light by living organisms as the result of chemical changes.
|Carbohydrates, a class of chemical compounds that are composed of carbon, hydrogen, and oxygen.
|Carbon Cycle, the series of natural processes by which carbon in the air is made available to living things, is used by them, and is then returned to the air.
|Cybernetics, the study and comparison of the way in which animals and machines control their movements and internal functions.
|Family, in biology, a group of living things believed to have a common ancestor. A family consists of one or more genera (singular: genus) made up of one or more species, or distinctive kinds, of living things.
|Fermentation, a type of anaerobic respiration, an energy-releasing process that takes place in the absence of free (chemically uncombined) oxygen.
|Kingdom, in natural science, one of several groups into which objects are classified.
|Parasite, an organism that lives in or on another organism, called the host, from which it obtains its food.
|Symbiosis, a close association between two different organisms. Symbiosis is a Greek word that means “living together.” In one type of symbiosis, known as mutualism, both partners benefit from the association.
|Variety, in biology, a group of plants or animals within a species. Varieties of animals are usually called breeds.
|The process in which a living thing adapts to its environment