The human population growth rate has been getting smaller in the last few decades.  Which of the following is the primary cause of this decline? Group of answer choices a. decreasing birth rate b. increasing death rate c. increasing r d. lack of resources

For each statement below, indicate whether it is True or False. (Enter 1 for True and 2 for False). Question 1 options: 12 Population growth is the change in the number of species during some period of time. 12 The carrying capacity for any given area is fixed. 12 Carrying capacity refers to the number of individuals who can be supported in a given area within natural resource limits, and without degrading the natural social, cultural and economic environment for present and future generations. 12 Ecosystem processes include energy cycling and interaction among species for nutrients.   12 Obligate mutualists must live with a partner species.

Describe a population bottleneck and how it impacts the effective population size (Ne). Then list two reasons why it increases the chances of a population going extinct.

Which one of the following is the number of individuals per unit area? A. distribution B. growth rate C. density D. geographic range

.If the birth rate is 0.9 and the death rate is 0.2 which of the following is true Group of answer choices a. r=1.1, the population is stable b. r = 0.7 the population is shrinking c. r = 1.1, the population is growing d. r = 0.7 the population is stable e. r = 0.7 the population is growing

The change in population size for Canada in 2015 was an increase of 272 990. In the same year, the number of births was 392 902, the number of deaths was 269 012, and the immigration number was 271 660.What was the number of people who emigrated from Canada in 2015? Select one: a. 147 770 b. 122 560 c. 217 264 d. 125 220

Which of the following forces can de-stabilize a population, resulting in a unstable equilibrium? a. short time lags in birth rates or death rates b. inverse density dependence c. density-dependent natality d. moderate competition e. density-dependent mortality

Which of the following factors stabilizes population growth into an S-shaped curve? a. limited territory b. a low number of predators c. abundant food d. stable water temperature

What's predicted by the stages of demographic transition? A. The life expectancy of an individual B. The technological developments of a country C. Trends in birth and death rates in relationship with industrial development D. Patterns of emotional development across a person's lifespan

Which of the following is true of overexploitation? Select ALL that apply.   a Only animals are affected by overexploitation. b Overfishing is due to modern fishing techniques that can take a lot of fish at once. c Amphibians are overexploited for food, medicine, and research. d Overexploitation means harvesting species at a rate slower than the population can recover. e Many birds are overcollected for the pet trade.