5 Written questions
5 Matching questions
- 8. What does population density measure?
- 11. How does natural selection determine the adaptations of organisms in an ecosystem?
- 23. What is a pioneer species and how are they important to the steps of succession?
- 19. Name three types of symbiosis and explain how each organism is affected.
- 13. Why can two species not occupy the same niche?
- a Because it would cause competition, because you can't share a job with something
- 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
- 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
- d How many people live in one area
- e The first species to populate an area
5 Multiple choice questions
- 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
- P- a tick on a dog
C- a bird sitting on a deer
M- a bee pollinating a flower
- Forest fires
- 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
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
3. Give examples of abiotic and biotic factors. → Biotic- plants, animals, paper
Abiotic- sun, water, soil
16. Explain adaptations a predator has to make it a good predator. → Running fast, claws, being nocturnal, stealth
2. What is the difference between biotic and abiotic factors in an ecosystem? → Organism-population-community-ecosystem
5. How is the ecosystem level different from the other levels? → Organism-population-community-ecosystem