In this paper pupils' ideas related to the cycling of matter between organisms, and between organisms and the abiotic environment in which they live, are presented and discussed. The design and methodology of the study were reported earlier (Leach et al. in press a) while a subsequent paper ...
Carbon and Oxygen Cycles, continued Plants use the carbon dioxide, CO2, in air to build organic molecules during the process of photosynthesis. During photosynthesis, oxygen is released into the surroundings. Many organisms, such as animals, use this oxygen to help break down organic molecules, wh...
Though low in content,trace elements have an important biological effect on organisms,so more and more people realize the importance of study on trace elements. Forms and the validity of the trace elements in soil had been researched. The content of trace elements in agroecosystems,factors that ...
The same nutrients are utilized multiple times by different organisms. This phenomenon is usually addressed as 'recycling' or simply cycling of energy–matter, and it is an important feature of natural systems. This article provides an overview of cycling and cycling indices in ecosystems ecology: ...
Carbon Cycle Short Term All livings things are composed of carbon Green plants and algae convert CO2 in the atmosphere along with water into carbohydrates. These carbohydrates are used as a source of energy for all other organisms CO2 is recycled when autotrophs and heterotrophs release it back...
similar conclusion was reached for the Pacific albeit using a different approach14. This mismatch between the PCD and POC supply via sinking particles indicates some fundamental errors in our estimates on deep-sea prokaryotic activity and/or on the magnitude of sinking organic matter flux1,9,15,...
1.the theory that everything in the universe is produced by matter in process, capable of explanation by the laws of chemistry and physics. 2.the theory that a natural process is machinelike or is explainable in terms of Newtonian mechanics. —mechanist,n.—mechanistic,adj. ...
Preservation of organic matter in sediments promoted by iron. Nature 483, 198–200 (2012). CAS PubMed Google Scholar Muehe, E. M. et al. Fate of Cd during microbial Fe(III) mineral reduction by a novel and Cd-tolerant Geobacter species. Environ. Sci. Technol. 47, 14099–14109 (2013...
. Small irregularities in the material act just like artificial mirrors in laser resonators preventing the light from escaping too quickly. These non-uniformities can be presented by particles, bubbles, droplets of dye, density fluctuations in fluids, surface roughness, cells in organisms, texti...
The carbon and nitrogen contents of dissolved and particulate forms of organic matter in coral reef water and in various living organisms were measured. It was found that the concentrations of dissolved and particulate organic matter in the reef are lower than those of open ocean, despite of ...