1) What may cause a population to decline? a) Breeding b) Inbreeding c) Zoos d) Deforestation 2) What is genetic variation? a) Evidence of breeding b) Difference in genetic make up of individuals in a population. c) Gene pools d) Change in frequency of an existing gene 3) What are common characteristics of an r selected species? a) Rapid breeding, only 1 young at a time, generalist feeder b) Slow breeding, high mortality, long life span c) Short life span, rapid breeding, low parental care d) Short life span, slow breeding, small in size 4) Define carrying capacity a) Minimum number of individuals of a given species the environment can support. b) Individuals in a area. c) Maximum number of individuals of a given species the environment can support. d) Individuals located across a population 5) Define fecundity rate a) Birth rate b) Fertility rate c) Death rate 6) Characteristic of a K selected species a) Small b) Long life span c) Short life span d) High birth rate 7) What is a metapopulation? a) Group of populations that are separated by space but consist of the same species. b) Population that grows fast c) Populations remaining in the same area d) Group of populations that are separated by space but consist of different species. 8) What is population density? a) Number of organisms in an ecological niche b) Number of organisms per unit area c) Number of organisms per tree d) Conservation status 9) What is migration? a) Movement of animals into hibernation b) When the weather changes c) Large-scale movement of species to a different environment d) Long term changes on the climate 10) What is an abiotic factor that affects an ecosystem? a) Non living condition, climate change. b) Living thing, human encroachment.

Population changes

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