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A population.
In case of plants, there is biological reduction. Carbon bi oxide and water is converted to glucose. Energy from sunlight is trapped in the form of ATP in chlorophyl. This ATP is used to in biological reduction. Energy consumed in biological reduction is same photon by photon, to energy released during biological or chemical oxidation. ( Law of conservation of energy in chemical reactions.)
Polyploidy is the condition of some biological cells and organisms.
Anabaena is a biological term used to describe a genus of cyanobacteria that is found as plankton. They can form symbiotic relationships with certain plants, and is known for it's nitrogen fixing abilities.
Enzymes are substrate specific; meaning that their active site only allows for a certain substrate to bind - in this case, pectin, and the enzyme has no effect on any other biological molecules
Groundwater
Diffusion describes dispersion of a contaminant through a bulk fluid. Osmosis describes dispersion of a contaminant through a membrane or divider of some sort.
artesian well
not applicable to the situation you describe.
Biological
Cycles
Surface water- Oceans, Lakes, Ponds, Swamps, Rivers, Streams... Groundwater- Aquifers, Caverns...
Primary drinking water is a term used to describe water from public water systems (as opposed to an in-ground well).
in vitro
physical is more on non living things like chairs desk etc in biological is only for living things
The biological and environmental impact of colloids is seen in various ways. They are the ones that transfer pollutants and nutrients in the environment.
A population.