Net Primary Production = Gross Primary Production - Respiration
Explanation:
<u>Gross Primary Production (GPP)</u> = The total amount of chemical energy that is expressed as carbon biomass created by primary producers in unit time.
<u>Respiration (R)</u> = A fraction of fixed amount of energy that is used by primary producers for the cellular respiration and maintenance of existing tissues.
<u>Net Primary Production (NPP)</u> = The remaining amount of the fixed energy.
Therefore, the equation that shows the relationship between gross and net primary production is,
<em>Net Primary Production (NPP) = Gross Primary Production (GPP) - Respiration (R)</em>
Net primary production is the amount of energy that remains behind after the consumption of some fraction of energy in respiration from the gross primary production.
Genetic drift decreases genetic diversity within a population.
Explanation:
Genetic drift decreases genetic diversity within a population. It is a change in allele frequencies due entirely to random chance and is more likely to affect smaller populations than large ones. Population bottlenecks can lead to genetic drift.
