As the Earth has evolved its chemical environment has significantly changed, which altered availability of certain metal ions [7], [8].
It is therefore possible that altering the availability of the energy substrate glucose will alter the correlation between cellular reducing equivalents and cell survival, and any uncoupling is therefore likely to be an unexpected confounding factor in experiments involving cellular health in diabetes.
The chemical constituents of irrigation water can affect plant growth directly through toxicity or deficiency, or indirectly by altering plant availability of nutrients (Ayers and Westcot 1985; Rowe and Magid 1995).
If there is any harmful chemical component, it can affect plant growth directly through toxicity or deficiency, or indirectly by altering plant availability of nutrients (Ayers and Westcot 1985; Rowe and Abdel Magid 1995; Islam and Shamsad 2009).
Similar to a manipulation check, by altering the availability of embodied actions we can selectively observe, all other things being equal (ceteris paribus), whether embodied actions positively impact performance on the task at hand.
As filter feeders, zebra mussels rely on plankton and can filter significant amounts of phytoplankton and zooplankton from the water, altering the availability of an important food source for paddlefish and native unionidae.
These include altering the availability of food that depends on the agricultural production [ 6] and influencing the stability of food supplies due to extreme weather events.
