non-renewable resource

Examples of non-renewable resource in the following topics:

• The Carbon Cycle

  • Fossil fuels are considered a non-renewable resource because their use far exceeds their rate of formation.
  • A non-renewable resource is either regenerated very slowly or not at all.

• Nitrogen Fixation: Root and Bacteria Interactions

  • Therefore, using rhizobia is a natural and environmentally-friendly way to fertilize plants as opposed to chemical fertilization that uses a non-renewable resource, such as natural gas.

• Genomics and Biofuels

  • Although plants are renewable resources, there is still a need to find more alternative renewable sources of energy to meet our population's energy demands.
  • The microbial world is one of the largest resources for genes that encode new enzymes and produce new organic compounds, and it remains largely untapped.

• Overharvesting

  • Overharvesting, also called overexploitation, refers to harvesting a renewable resource to the point of diminishing returns.
  • All living organisms require resources to survive.
  • Overharvesting these resources for extended periods of time can deplete natural resources to the point where they are unable to recover within a short time frame.
  • Overharvesting not only threatens the resource being harvested, but can directly impact humans as well - for example by decreasing the biodiversity necessary for medicinal resources.
  • The natural outcome of harvesting common resources is their overexploitation.

• Gene Expression in Stem Cells

  • To ensure self-renewal, stem cells undergo two types of cell division: symmetric and asymmetric.
  • Asymmetric division, on the other hand, produces only one stem cell and a progenitor cell with limited self-renewal potential.
  • Notably, stem cells divide asymmetrically to give rise to two distinct daughter cells: one copy of the original stem cell as well as a second daughter programmed to differentiate into a non-stem cell fate.
  • Asymmetric divisions of these embryonic cells gives rise to one cell of the same potency (self-renewal), and another that may be of the same potency or stimulated to further differentiate into specialized cell types such as neurons.

• The Importance of Seedless Vascular Plants

  • Dried peat moss, Sphagnum, is commonly used as fuel in some parts of Europe and is considered a renewable resource .

• Community Ecology and Ecosystem Ecology

  • Questions about conspecific interactions often focus on competition among members of the same species for a limited resource.
  • The ecosystem is composed of all the biotic components (living things) in an area along with that area's abiotic components (non-living things).
  • Researchers interested in ecosystem ecology could ask questions about the importance of limited resources and the movement of resources, such as nutrients, though the biotic and abiotic portions of the ecosystem.

• Introduction to Ecology

  • In ecology, ecosystems are composed of dynamically-interacting parts, which include organisms, the communities they comprise, and the non-living (abiotic) components of their environment.
  • There are many practical applications of ecology in conservation biology, wetland management, natural resource management (agroecology, agriculture, forestry, agroforestry, fisheries), city planning (urban ecology), community health, economics, basic and applied science, and human social interaction (human ecology).
  • Organisms and resources comprise ecosystems which, in turn, maintain biophysical feedback mechanisms that moderate processes acting on living (biotic) and nonliving (abiotic) components of the planet.

• Natural Killer Cells

  • MHC I molecules are proteins on the surfaces of all nucleated cells which help the immune system distinguish between "self" and "non-self."
  • Healthy cells do not display any proteins and will be ignored by the immune system, while the cells identified as "non-self" by foreign proteins will be attacked by the immune system.
  • The metabolic resources of cells infected by some viruses produce proteins that interfere with MHC I processing and/or trafficking to the cell surface.

• Measuring Biodiversity

  • Computer resources store and make available the large volumes of data.
  • This task is carried out by the non-profit IUCN (International Union for Conservation of Nature) which maintains the Red List: an online listing of endangered species categorized by taxonomy, type of threat, and other criteria .