Access to water is critical to survival in plants. Since competition reduces fitness, natural selection tends to favor species that partition available resources. For example, different species of prairie plants have roots that access water at different depths in the soil. Interpret the niche model.

The niche model is explained below:

Explanation:

The usefulness of water in plants is irreplaceable. So plants develop a condition called as "acclimatization strategies" to survive in geographical locations where water levels are low. This is the reason that some plants like small bushy foliage plants, have shorter or smaller roots which can grow only up to a few centimeters in the sea. Therefore the no. of individuals in this species is high in such prairies because these grounds contains enough water content.

Having very deep root system is not essential in prairies, so the frequency of plants with deep root system is considerably low.

Explanation:

When computer algorithm is  use  to predict distribution of species  across geographical  regions and space  based on the effects of  available environmental data- of  temperature, type of soil, soil water availability and dept,  the concept  which deals with this is called Ecological  Niche Model.

It is primarily used to   interpret and predict the effect of  above  listed environmental factors  on the existence and distribution  of a species of organism in a particular niche, to  determine evolutionary relationships between the present and  past species distribution of organisms, and managements of  specif species of organism in a particular ecological niche.

In this present  scenario, the niche model can be used to interpret and  predict  the survival, distribution of prairie plant  in its ecological niche. This is based on the fact that this plant has resistance against  the selective pressure(water dept), which aids its survival ahead of other  plants. This  feature makes it to be naturally selected, against other less fitted  plants ( with no water tapping  feature) , which were fizzled out  by completion.

Two categories of the model exists based on the effects of the environmental factors on the distributions of species;Resource  selection function models, and on the physiology of the species to determine the type of environmental condition suitable for the survival of the specie of organism- Biophysical models

Explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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