CPES POPULATIONS UPDATED QUESTIONS AND
CORRECT ANSWERS
Question:
1. What is a group of organ-isms that are a part of the same species that live in a specific area and
inter-breed
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 ra-tio for a population?
Answer:
Age structure diagram
Question:
4. What is max number of in-dividuals an area/commu-nity 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 be-tween high and low densi-ty?
Answer:
High density = particles/things packed closely together. Low density = particles/things spread farther
apart.
Question:
7. what is the number of indi-viduals per given area
Answer:
population density
Question:
8. What's it called when death occurs more quick-ly in crowded populations rather than sparse/less
populated areas?
Answer:
Density dependent
, Question:
9. Part of a population might die regardless of the pop-ulation'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 pop-ulation
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 ΔN formula?
Answer:
ΔN = (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 rab-bits were born,
600 rabbits died, 200 rabbits moved into the area, and 100 rab-bits moved out. Using the ΔN formula,
calculate the change in the population (-ΔN) and the new popula-tion size at the end of the year.
CORRECT ANSWERS
Question:
1. What is a group of organ-isms that are a part of the same species that live in a specific area and
inter-breed
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 ra-tio for a population?
Answer:
Age structure diagram
Question:
4. What is max number of in-dividuals an area/commu-nity 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 be-tween high and low densi-ty?
Answer:
High density = particles/things packed closely together. Low density = particles/things spread farther
apart.
Question:
7. what is the number of indi-viduals per given area
Answer:
population density
Question:
8. What's it called when death occurs more quick-ly in crowded populations rather than sparse/less
populated areas?
Answer:
Density dependent
, Question:
9. Part of a population might die regardless of the pop-ulation'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 pop-ulation
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 ΔN formula?
Answer:
ΔN = (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 rab-bits were born,
600 rabbits died, 200 rabbits moved into the area, and 100 rab-bits moved out. Using the ΔN formula,
calculate the change in the population (-ΔN) and the new popula-tion size at the end of the year.
