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Population growth and carrying capacity

11th grade (Year 12 in England) · 16 questions · Common Core: NGSS.HS-LS2-1, NGSS.HS-LS2-2, NGSS.SEP 5 · England: GCSE Combined Science: Ecology

Name

Date

Score/ 16

1
Question 1
A population of yeast cells (thousands per cm³) was counted each day: 25, 50, 100, 190, 310, 410, 475, 500, 495. Which value is closest to the carrying capacity?
- A. 190
- B. 250
- C. 500
- D. 1000
2
Question 2
Why does a population stop growing when it reaches carrying capacity?
- A. Carrying capacity is always 100
- B. Limiting factors such as food, space and disease balance births and deaths
- C. The population runs out of DNA
- D. The animals decide to stop breeding
Question 3
A deer population grew from 400 to 500 in one year. What was the percentage growth rate?
Answer%
4
Question 4
A population of yeast cells (thousands per cm³) was counted each day: 25, 50, 100, 190, 310, 410, 475, 500, 495. Which value is closest to the carrying capacity?
- A. 190
- B. 250
- C. 500
- D. 1000
5
Question 5
An invasive species arrives on an island with no predators. What is most likely at first?
- A. nothing changes
- B. native species grow faster
- C. the invasive species dies out at once
- D. rapid population growth that may harm native species
Question 6
A deer population grew from 1000 to 1250 in one year. What was the percentage growth rate?
Answer%
7
Question 7
A population of yeast cells (thousands per cm³) was counted each day: 15, 30, 60, 114, 186, 246, 285, 300, 297. Which value is closest to the carrying capacity?
- A. 114
- B. 150
- C. 300
- D. 600
8
Question 8
An invasive species arrives on an island with no predators. What is most likely at first?
- A. rapid population growth that may harm native species
- B. the invasive species dies out at once
- C. native species grow faster
- D. nothing changes
Question 9
A deer population grew from 500 to 625 in one year. What was the percentage growth rate?
Answer%
10
Question 10
A population of yeast cells (thousands per cm³) was counted each day: 10, 20, 40, 76, 124, 164, 190, 200, 198. Which value is closest to the carrying capacity?
- A. 76
- B. 100
- C. 200
- D. 400
11
Question 11
A population with plenty of resources and no predators grows…
- A. in a straight line
- B. more slowly each year
- C. exponentially (faster and faster)
- D. not at all
Question 12
A deer population grew from 200 to 250 in one year. What was the percentage growth rate?
Answer%
13
Question 13
A population of yeast cells (thousands per cm³) was counted each day: 25, 50, 100, 190, 310, 410, 475, 500, 495. Which value is closest to the carrying capacity?
- A. 190
- B. 250
- C. 500
- D. 1000
14
Question 14
Why does a population stop growing when it reaches carrying capacity?
- A. Limiting factors such as food, space and disease balance births and deaths
- B. The population runs out of DNA
- C. The animals decide to stop breeding
- D. Carrying capacity is always 100
Question 15
A deer population grew from 400 to 440 in one year. What was the percentage growth rate?
Answer%
16
Question 16
A population of yeast cells (thousands per cm³) was counted each day: 10, 20, 40, 76, 124, 164, 190, 200, 198. Which value is closest to the carrying capacity?
- A. 76
- B. 100
- C. 200
- D. 400

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