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Define Historical example for scaling from individual to ecosystems?
Biological oceanographers have long utilized physiologically based models like the Droop model, which reduces maximum growth rate relies on the internal nutrient concentration within plankton cells, to scale biogeochemical dynamics up from the functioning of single foraging plankton to the biogeochemical balances of whole ocean cells; these are then embedded in three-trophic level, nutrient- phytoplankton-zooplankton (NPZ) models and incorporated into large-scale computational mixing models to ascertain the temporal and spatial patterns of global biogeochemical fluxes.
Although debate over the suitable level of model complexity carries on (plankton dynamics are complicated by biochemical variation between different plankton guilds and by successional changes in size distribution) the simpler models are routinely embedded in large-scale climate models to predict the influences of plankton growth on atmosphere-ocean carbon balances, and have currently been adapted to study phytoplankton blooms (Sommer 1991, Hurtt and Armstrong 1999, Huppert et al. 2002).
Xerarch - Kinds of Succession When the succession takes place in drier area, i.e., the succession progresses from xeric to mesic conditions. It is further subdivided as:
In a population of 200, 90 are homozygous dominant, 40 are heterozygotes, and 70 are homozygous recessive for a particular trait. What do you expect the frequencies of the dominant
details and terms used in growth and development?
R E TIN A - It is inverted. Innermost, sensitive layer. The part of ratina which is attached to choroid is pars optica. The part of retina attached to cilliary b
Are the phloem and the xylem made of living cells? The cells of phloem are living cells and the cells that constitute the xylem ducts are dead cells killed by the lignin deposi
Aquatic Ecosystem - Types of Ecosystem Global waters cover about three quarters of the earth's surface either as fresh water where salt content is less than 0.5 per cent or as
Inspiration decreases the pressure in the central veins and thus increases the pressure gradient between the peripheral and central veins thus augmenting venous return. Skeletal mu
Q. Why is the uricotelic excretion essential for reptile and avian embryos? In birds and reptiles the excretory system is uricotelic since uric acid is less toxic, insoluble an
If baroreceptors are primed to detect blood pressure changes and compensate for them, how is it that some patients suffer from chronic hypertension?
It is a category of viruses having RNA genome and reverse transcriptase enzyme within virus cuspid.
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