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An ecologist studies a population of animals in a small field over several years. He measures the birth rate ( B) and death rate ( D) over that period. The data are shown in the graph. 0.6 0.5 0.4 0.3 0.2 0.1 1 2 3 4 Time (years) + Birth- Death What was the per capita growth rate (dN/dt, number/year/individual) at year 3.5? (Express the answer in two decimal places) Rate (numberlyear/individual)

An ecologist studies a population of animals in a small field over several years. He measures the birth rate ( B) and death rate ( D) over that period. The data are shown in the graph. 0.6 0.5 0.4 0.3 0.2 0.1 1 2 3 4 Time (years) + Birth- Death What was the per capita growth rate (dN/dt, number/year/individual) at year 3.5? (Express the answer in two decimal places) Rate (numberlyear/individual)

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Animal Population Study: Birth and Death Rates Over Time** An ecologist studies a population of animals in a small field over several years. He measures the birth rate (B) and death rate (D) over that period. The data are shown in the graph below. **Graph Description** - **X-axis (Horizontal)**: Represents the time in years, ranging from 0 to 5. - **Y-axis (Vertical)**: Represents the rate in number per year per individual, ranging from 0 to 0.5. - **Blue Line (Birth Rate)**: Indicates the birth rate over time. - **Red Line (Death Rate)**: Indicates the death rate over time. **Graph Analysis** - At the start (year 0), the birth rate is lower than the death rate. - The birth rate increases to its peak around year 2, while the death rate decreases. - From year 2 to year 3, the birth rate stays consistent while the death rate remains low. - After year 3, the birth rate starts to decline and the death rate rises, intersecting around year 4. - By year 5, the death rate exceeds the birth rate. **Question** What was the per capita growth rate (dN/dt, number/year/individual) at year 3.5? (Express the answer in two decimal places) __________ --- To answer this question, you will have to find the difference between the birth rate and the death rate at the specified time (year 3.5). Pay close attention to the values on the graph.
Transcribed Image Text:**Animal Population Study: Birth and Death Rates Over Time** An ecologist studies a population of animals in a small field over several years. He measures the birth rate (B) and death rate (D) over that period. The data are shown in the graph below. **Graph Description** - **X-axis (Horizontal)**: Represents the time in years, ranging from 0 to 5. - **Y-axis (Vertical)**: Represents the rate in number per year per individual, ranging from 0 to 0.5. - **Blue Line (Birth Rate)**: Indicates the birth rate over time. - **Red Line (Death Rate)**: Indicates the death rate over time. **Graph Analysis** - At the start (year 0), the birth rate is lower than the death rate. - The birth rate increases to its peak around year 2, while the death rate decreases. - From year 2 to year 3, the birth rate stays consistent while the death rate remains low. - After year 3, the birth rate starts to decline and the death rate rises, intersecting around year 4. - By year 5, the death rate exceeds the birth rate. **Question** What was the per capita growth rate (dN/dt, number/year/individual) at year 3.5? (Express the answer in two decimal places) __________ --- To answer this question, you will have to find the difference between the birth rate and the death rate at the specified time (year 3.5). Pay close attention to the values on the graph.
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