AOS 5

• What are the two main types of adaptations in animals for hot environments?


  Structural and physiological adaptations
• What is the purpose of insulation techniques in hot environments?


  To maintain temperature balance
• How do animals in cold environments conserve water?


  By producing concentrated urine
• Why do plants in hot environments have light-colored leaves?

  To increase albedo and reflect sunlight
• What are the types of interdependence between species in an ecosystem?

  • Mutualism
  • Commensalism
  • Competition
  • Predation
  • Parasitism
  • Amensalism
• What defines a keystone species in an ecosystem?


  Its effects are greater than expected relative to its population size
• What role do apex predators play in an ecosystem?


  They have no natural predators and are at the top of the food chain
• What are the definitions of population distribution, size, and density?


  • Population distribution: Geographical range of a population
  • Population size: Total number of individuals in a population
  • Population density: Number of individuals per unit area