Challenge #3
Population Dynamics
T. Trimpe 2008 http://sciencespot.net/
Answer each question.
1. If a population of 50 cottontail rabbits produce 300 young in a year, what is
the birth rate for this population?
2. True or False – If the birth rate < death rate, the population will increase in
size.
3. What term refers to the movement of animals into a population?
Rabbit Population
Rabbit Population Study
4. Use the graph to answer these questions.
B. In which year did the population increase
the most?
500
# of Rabbits
A. In which year did the population decrease
the most?
Data recorded at the end of each year.
600
400
300
200
100
0
1
2
3
4
5
6
Year
7
8
9
10
The answers are …
1. If a population of 50 cottontail rabbits produce 300 young in a year, what is
the birth rate for this population?
300 rabbits per year
2. True or False – If the birth rate < death rate, the population will increase in
size.
False – The population would decrease.
3. What term refers to the movement of animals into a population?
Immigration
Rabbit Population
Rabbit Population Study
4. Use the graph to answer these questions.
B. In which year did the population increase
the most?
Year 2
500
# of Rabbits
A. In which year did the population decrease
the most?
Year 5
Data recorded at the end of each year.
600
400
300
200
100
0
1
2
3
4
5
6
Year
7
8
9
10