part 4

Question 1

expanding population

Answer 1

pyramidal shaped. pre reproduction>reproduction>post reproduction. Cases found in India

Question 2

stable population

Answer 2

bell shaped. pre reproduction is somehow similar to reproduction > post reproduction. Case found in Sweden, Norway

Question 3

declining population

Answer 3

prepost reproduction. yearn shaped. Case found in Syria

Question 4

what are the factors that contribute to increase in population

Answer 4

natality(birth rate) and immigration (people entering to a particular country or state)

Question 5

decrease in population

Answer 5

mortality(death rate) and emigration(people leaving a country or state)

Question 6

equation for population density

Answer 6

[(B+I)-(D+E)]

Question 7

exponential growth model

Answer 7

when the resources are unlimited in the habitat

equation: dN/dT= rN

Question 8

logistic growth model

Answer 8

when the resources are limited, the restraints from government results in a sigmoid curve, This type of pop. growth is called Verhulst Pearl logistic growth
equation: dN/dT=rN(K-N)/K