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5 Written questions

5 Matching questions

  1. 8. What does population density measure?
  2. 11. How does natural selection determine the adaptations of organisms in an ecosystem?
  3. 23. What is a pioneer species and how are they important to the steps of succession?
  4. 19. Name three types of symbiosis and explain how each organism is affected.
  5. 13. Why can two species not occupy the same niche?
  1. a Because it would cause competition, because you can't share a job with something
  2. b Commensalism- one is benefited one get nothing happened to it
    Parasitism- on is harmed and the parasite is benefited
    Mutualism- both organisms are benefited
  3. c The organisms with the traits best suited for the environment will have a greater survival rate and reproduce more that the ones without these traits
  4. d How many people live in one area
  5. e The first species to populate an area

5 Multiple choice questions

  1. I- birth rate and immigration can make a population increase, space
    D- limiting factors, food shortages, emigration, and natural disasters can make a population decrease
  2. P- a tick on a dog
    C- a bird sitting on a deer
    M- a bee pollinating a flower
  3. -Predation
    -Competition
  4. Forest fires
    Tsunamis
    Floods
    Hurricanes
    Mining
  5. An organism role or job, determined by what an organism eats, how it eats, who it eats, how it reproduces, and physical conditions it requires to survive.

5 True/False questions

  1. 15. Explain the relationship between a predator and prey. Explain how the each population affects the other's population.Predator: wolf- helps control the population by eating the prey
    Prey: deer- provides food for the predator

          

  2. 3. Give examples of abiotic and biotic factors.Biotic- plants, animals, paper
    Abiotic- sun, water, soil

          

  3. 16. Explain adaptations a predator has to make it a good predator.Running fast, claws, being nocturnal, stealth

          

  4. 2. What is the difference between biotic and abiotic factors in an ecosystem?Organism-population-community-ecosystem

          

  5. 5. How is the ecosystem level different from the other levels?Organism-population-community-ecosystem