Population Dynamics of Animal mcqs January 8, 2026April 9, 2024 by u930973931_answers 44 min Score: 0 Attempted: 0/44 Subscribe 1. . What does population dynamics refer to in ecology? (A) The study of individual organisms within a population (B) The study of interactions between different species (C) The study of changes in population size and structure over time (D) The study of evolutionary processes within a population 2. . Which of the following factors can influence population growth rate? (A) Birth rate (B) Death rate (C) Immigration (D) All of the above 3. . What term describes the maximum number of individuals that a habitat can support sustainably? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 4. . Which of the following factors is NOT considered a density-dependent factor regulating population growth? (A) Competition for resources (B) Predation (C) Disease (D) Weather events 5. . What type of population growth is characterized by a constant growth rate over time? (A) Exponential growth (B) Logistic growth (C) Arithmetic growth (D) Geometric growth 6. . Which of the following factors is responsible for the sigmoid shape of the logistic growth curve? (A) Density-independent factors (B) Density-dependent factors (C) Carrying capacity (D) Immigration rate 7. . What term describes a period of rapid population growth followed by a sudden decline? (A) Population explosion (B) Population bottleneck (C) Population crash (D) Population equilibrium 8. . Which of the following statements is true regarding r-selected species? (A) They typically have few offspring with high parental investment. (B) They have a stable population size near the carrying capacity. (C) They are adapted to stable environments with low variability. (D) They exhibit rapid population growth and high reproductive rates. 9. . Which of the following statements is true regarding K-selected species? (A) They exhibit rapid population growth and high reproductive rates. (B) They typically have many offspring with low parental investment. (C) They are adapted to unstable environments with high variability. (D) They have a stable population size near the carrying capacity. 10. . What is the term for the movement of individuals into a population from another area? (A) Emigration (B) Birth rate (C) Immigration (D) Mortality 11. . Which of the following factors is a density-dependent mechanism that limits population growth by reducing birth rates or increasing death rates as population density increases? (A) Predation (B) Competition (C) Weather events (D) Immigration 12. . What is the term for the total number of individuals of a species in a given area or habitat? (A) Population density (B) Carrying capacity (C) Population size (D) Birth rate 13. . Which of the following factors contributes to exponential population growth? (A) High mortality rate (B) Low reproductive rate (C) Constant immigration (D) Unlimited resources 14. . What type of growth curve exhibits a slowing growth rate as the population approaches the carrying capacity? (A) Exponential growth curve (B) Linear growth curve (C) Logistic growth curve (D) Geometric growth curve 15. . Which of the following is an example of a density-independent factor affecting population growth? (A) Predation (B) Disease (C) Competition (D) Severe weather 16. . What term describes the random fluctuation in population size due to chance events? (A) Population bottleneck (B) Population equilibrium (C) Population crash (D) Population variability 17. . What is the term for the number of individuals added to a population through reproduction and immigration? (A) Birth rate (B) Death rate (C) Emigration (D) Mortality 18. . Which of the following is a characteristic of a stable population? (A) High birth rate and low death rate (B) Low birth rate and high death rate (C) Equal birth rate and death rate (D) Fluctuating birth and death rates 19. . Which of the following factors is a density-dependent mechanism that limits population growth by increasing death rates as population density increases? (A) Predation (B) Disease (C) Competition (D) Immigration 20. . What term describes the phenomenon where a population’s growth rate decreases as it reaches its carrying capacity? (A) Population equilibrium (B) Logistic growth (C) Exponential growth (D) Population bottleneck 21. . Which of the following is an example of a density-independent factor affecting population growth? (A) Resource availability (B) Predation pressure (C) Disease prevalence (D) Natural disasters 22. . What term describes a situation where a population’s size is drastically reduced for a brief period, leading to reduced genetic diversity? (A) Population bottleneck (B) Population crash (C) Population fluctuation (D) Population stabilization 23. . Which of the following factors is NOT considered a density-dependent mechanism regulating population growth? (A) Competition for resources (B) Predation pressure (C) Disease prevalence (D) Birth rate 24. . What term describes the movement of individuals out of a population to another area? (A) Emigration (B) Birth rate (C) Immigration (D) Mortality 25. . Which of the following factors contributes to logistic population growth? (A) High birth rate (B) Low death rate (C) Limited resources (D) Constant immigration 26. . What term describes the phenomenon where a population’s growth rate remains constant over time? (A) Exponential growth (B) Logistic growth (C) Stable growth (D) Geometric growth 27. . Which of the following factors can lead to a decrease in population density? (A) High birth rate (B) Low mortality rate (C) Emigration (D) Resource abundance 28. . What term describes the level of crowding experienced by individuals in a population? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 29. . Which of the following factors can lead to an increase in population density? (A) High mortality rate (B) Low birth rate (C) Immigration (D) Scarce resources 30. . What term describes the maximum number of individuals that a habitat can support without degrading the habitat’s quality? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 31. . Which of the following factors is considered a density-independent mechanism regulating population growth? (A) Competition for resources (B) Predation pressure (C) Disease prevalence (D) Weather events 32. . What term describes the total number of individuals of a species per unit area or volume of habitat? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 33. . Which of the following factors can lead to an increase in population density? (A) High mortality rate (B) Low birth rate (C) Immigration (D) Scarce resources 34. . What term describes the level of crowding experienced by individuals in a population? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 35. . Which of the following factors can lead to a decrease in population density? (A) High birth rate (B) Low mortality rate (C) Emigration (D) Resource abundance 36. . What term describes the maximum number of individuals that a habitat can support without degrading the habitat’s quality? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 37. . Which of the following factors is considered a density-independent mechanism regulating population growth? (A) Competition for resources (B) Predation pressure (C) Disease prevalence (D) Weather events 38. . What term describes the total number of individuals of a species per unit area or volume of habitat? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 39. . Which of the following factors can lead to an increase in population density? (A) High mortality rate (B) Low birth rate (C) Immigration (D) Scarce resources 40. . What term describes the level of crowding experienced by individuals in a population? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 41. . Which of the following factors can lead to a decrease in population density? (A) High birth rate (B) Low mortality rate (C) Emigration (D) Resource abundance 42. . What term describes the maximum number of individuals that a habitat can support without degrading the habitat’s quality? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity 43. . Which of the following factors is considered a density-independent mechanism regulating population growth? (A) Competition for resources (B) Predation pressure (C) Disease prevalence (D) Weather events 44. . What term describes the total number of individuals of a species per unit area or volume of habitat? (A) Carrying capacity (B) Population density (C) Population size (D) Habitat capacity