CPES POPULATIONS UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Question:
1. What is a group of organisms that are a part of the same species that live in a specific area and interbreed
Answer:
Population
Question:
2. using the terms clumped, random, and uniform to describe how individuals and a population are
spaced...
Answer:
population distribution
Question:
3. What diagram is used to show sex and age range ratio for a population?
Answer:
Age structure diagram
Question:
4. What is max number of individuals an area/community can support?
Answer:
Carrying capacity (Think of it like the capacity of the area/community)
Question:
5. What is it called when members of a population use the same resources in the same way?
Answer:
Competition
Question:
6. What's the difference between high and low density?
Answer:
High density = particles/things packed closely together. Low density = particles/things spread farther apart.
Question:
7. what is the number of individuals per given area
Answer:
population density
Question:
8. What's it called when death occurs more quickly in crowded populations rather than sparse/less
populated areas?
Answer:
Density dependent
, Question:
9. Part of a population might die regardless of the population's density, which is called what?
Answer:
Density independent (meaning that these deaths would happen no matter how high or low the density is)
Question:
10. Having a higher-density population leads to more deaths, true or false?
Answer:
True, this is because things like diseases can spread faster with more people.
Question:
11. What is immigration?
Answer:
Moving into the country/place
Question:
12. What is emigration?
Answer:
Leaving the country/place Way to remeber: (Emigration=Exit)
Question:
13. 2 factors that add to a population
Answer:
- Births
- Immigration
Question:
14. 2 factors that decrease a population
Answer:
- Deaths
- Emigration
Question:
15. The variable N represents what?
Answer:
number of organisms in the population
Question:
16. What is the ∆N formula?
Answer:
∆N = (B-D)+(I-E) B= births, D= deaths, I=immigration, E= emigration
Question:
17. A rabbit population started the year with 5,000 rabbits. During the year, 900 rabbits were born, 600
rabbits died, 200 rabbits moved into the area, and 100 rabbits moved out. Using the ∆N formula, calculate
the change in the population (- ∆N) and the new population size at the end of the year.
CORRECT ANSWERS
Question:
1. What is a group of organisms that are a part of the same species that live in a specific area and interbreed
Answer:
Population
Question:
2. using the terms clumped, random, and uniform to describe how individuals and a population are
spaced...
Answer:
population distribution
Question:
3. What diagram is used to show sex and age range ratio for a population?
Answer:
Age structure diagram
Question:
4. What is max number of individuals an area/community can support?
Answer:
Carrying capacity (Think of it like the capacity of the area/community)
Question:
5. What is it called when members of a population use the same resources in the same way?
Answer:
Competition
Question:
6. What's the difference between high and low density?
Answer:
High density = particles/things packed closely together. Low density = particles/things spread farther apart.
Question:
7. what is the number of individuals per given area
Answer:
population density
Question:
8. What's it called when death occurs more quickly in crowded populations rather than sparse/less
populated areas?
Answer:
Density dependent
, Question:
9. Part of a population might die regardless of the population's density, which is called what?
Answer:
Density independent (meaning that these deaths would happen no matter how high or low the density is)
Question:
10. Having a higher-density population leads to more deaths, true or false?
Answer:
True, this is because things like diseases can spread faster with more people.
Question:
11. What is immigration?
Answer:
Moving into the country/place
Question:
12. What is emigration?
Answer:
Leaving the country/place Way to remeber: (Emigration=Exit)
Question:
13. 2 factors that add to a population
Answer:
- Births
- Immigration
Question:
14. 2 factors that decrease a population
Answer:
- Deaths
- Emigration
Question:
15. The variable N represents what?
Answer:
number of organisms in the population
Question:
16. What is the ∆N formula?
Answer:
∆N = (B-D)+(I-E) B= births, D= deaths, I=immigration, E= emigration
Question:
17. A rabbit population started the year with 5,000 rabbits. During the year, 900 rabbits were born, 600
rabbits died, 200 rabbits moved into the area, and 100 rabbits moved out. Using the ∆N formula, calculate
the change in the population (- ∆N) and the new population size at the end of the year.
