5 Written questions
5 Matching questions
- 14. What are two major interactions between organisms in an ecosystem?
- 12. What is an organism's niche?
- 4. What are the levels of organization in an ecosystem?
- 23. What is a pioneer species and how are they important to the steps of succession?
- 7. What can cause a population to increase? Decrease?
- a -Predation
- b The first species to populate an area
- c 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
- d 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.
- e Organism-population-community-ecosystem
5 Multiple choice questions
- 1. Abandoned field
2. Tree growth begins
4. Climax community
- Because it would cause competition, because you can't share a job with something
- P- a tick on a dog
C- a bird sitting on a deer
M- a bee pollinating a flower
- Hiding in its shell, claws, being nocturnal, cunning
- The study of how organisms interact with each other and with their environment
5 True/False questions
10. What is an adaptation? → Behaviors & physical characteristics that allow organisms to survive in their environment
15. Explain the relationship between a predator and prey. Explain how the each population affects the other's population. → Running fast, claws, being nocturnal, stealth
16. Explain adaptations a predator has to make it a good predator. → Running fast, claws, being nocturnal, stealth
22. What are the two types of succession and how are they different? → Primary- he series of changes that occur in an area where no soil or organisms exist- takes 100's of years
Secondary- the series of changes that occur in an area where the ecosystem ha been disturbed, but where soil and organisms still exist- takes a couple years
9. What is a limiting factor? Give examples. → -An environmental factor that causes a population to stop growing or to decrease in size
-Natural disaster, space, food, water, weather conditions, population growth, disease