Leaky Expression

In repressed state, an occasional transcript gets made. This happens because every so often, RNA polymerase will manage to bind the promoter in place of the Lac repressor. This leakiness encode meager level of Z, Y and A.

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#Unit 10. Ecological Principles

SPATIAL ENVIRONMENTAL VARIATION

Environmental variation also occurs from place to place due to large-scale variation in climate, topography, and soil type

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#Unit 10. Ecological Principles

                                                                                              

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#Unit 10. Ecological Principles

Abiotic factors determine the fundamental niches of organisms.

The actual range of an organism in nature is termed the realized niche.

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#Unit 10. Ecological Principles

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#Unit 10. Ecological Principles

Regulate body temperature

Body temp remain constant

Heat (in) = heat (out)

Heat (in) = Metabolism + solar radiation

Heat (out) = Radiation + Convection + Conduction + Evaporate 

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#Unit 10. Ecological Principles