Factors Influencing Growth

Question 1

Mortality

Answer 1

number of deaths; due to starvation (competition), predation, or disease

Question 2

Natality

Answer 2

number of births; tends to increase with food supply and decrease with competition

Question 3

Immigration

Answer 3

number of individuals entering the population from outside; can be due to abiotic factors (e.g. escape form fire, drought, flood, climate change) or biotic factors (e.g. increased competition

Question 4

Emigration

Answer 4

number of individuals that leave the population; due to the same reasons as immigration

Question 5

Population determiners

Answer 5

four factors that change the numbers of individuals in the population: natality, mortality, immigration, and emigration