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Biology Wagaman

WCHS Wagaman Biology Chapter 4 words to know

WordDefinition
Linear growth increasing by the same amount each time
Exponential growth increasing by bigger and bigger amounts
Carrying capacity The loargest number of organisms that an environment can hold indefinitely
Density-dependent factors the effect increases when the population increases-disease, competition, predators, food
density-independent factors affects populations regardless of the population size-aboitic factors and habitat disruption
Calculating growth birthrate-deathrate=PGR
Postitive PGR population increasing
Negative PGR Population decreasing
Birth rate number of live births per 1000 population in a year
Death rate number of deaths per 1000 population in a year
doubling time the time it takes for the population to double
age structure the proportions of the population in different age levels (age structure graphs)
ecology what resources do humans depend on
Created by: dmoudy
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