Question

1. Explain how and models are used in ecology then explain how/why the population growth models are used. 2. In population ecology, two basic models are used: the exponential population growth model and the logistic population growth model, distinguish (compare/contrast) between the exponential and logistic growth models. 3. Both the exponential and logistic population growth models are represented by an equation and a graph (figure). Draw the models by hand. Describe the shape of the curve with the underlying factors that give rise to the curve and make clear where those factors take place (location) on the graph. 4. In the context of the exponential and logistic growth models, a. explain the symbols (?N/?t) and dN/dt. b. draw both the exponential and logistic growth curves and show both (?N/?t) and dN/dt on the curves c. explain what the symbols tell you d. explain how you would use the symbol in solving a population growth model problem. 5. Growth rate is an important element to populations. a. Discuss the concept of growth rate b. On both the exponential and logistic models from question 3, label where the growth rate is greater than (>), less than (<), or equal (=) to zero on a graph of both the exponential and logistic growth curves. c. Explain why the growth rate is greater than (>), less than (<), or equal (=) to zero at that particular location on both of the graphs. d. identify where per capital growth rate is the highest then support your answers. e. identify where the instantaneous growth rate is the highest then support your answers. 6. Population size can be controlled by one of two factors: density independent and density dependent population control factors. This is one big essay; do not label a-e in your responses instead answer clearly in the paragraph (s). a. Define both factors b. Explain how these factors regulate population sizes. c. Distinguish both types of factors by example and graphically. d. Explain how density independent and/or density dependent population growth factors influences the rate of spread for COVID-19 spreads in the human population. e. (+4 points) Relate the explanation from d to any of the concepts (type of growth model, growth rate equation, per capita v. instantaneous growth rate, carrying capacity, peaks (highest) growth in the population, etc.)

          1. Explain how and models are used in ecology then explain how/why the population growth models are used.

2. In population ecology, two basic models are used: the exponential population growth model and the logistic population growth model, distinguish (compare/contrast) between the exponential and logistic growth models.

3. Both the exponential and logistic population growth models are represented by an equation and a graph (figure). Draw the models by hand. Describe the shape of the curve with the underlying factors that give rise to the curve and make clear where those factors take place (location) on the graph.

4. In the context of the exponential and logistic growth models,
a. explain the symbols (?N/?t) and dN/dt.
b. draw both the exponential and logistic growth curves and show both (?N/?t) and dN/dt on the curves
c. explain what the symbols tell you
d. explain how you would use the symbol in solving a population growth model problem.

5. Growth rate is an important element to populations.
a. Discuss the concept of growth rate
b. On both the exponential and logistic models from question 3, label where the growth rate is greater than (>), less than (<), or equal (=) to zero on a graph of both the exponential and logistic growth curves.
c. Explain why the growth rate is greater than (>), less than (<), or equal (=) to zero at that particular location on both of the graphs.
d. identify where per capital growth rate is the highest then support your answers.
e. identify where the instantaneous growth rate is the highest then support your answers.

6. Population size can be controlled by one of two factors: density independent and density dependent population control factors. This is one big essay; do not label a-e in your responses instead answer clearly in the paragraph (s).
a. Define both factors
b. Explain how these factors regulate population sizes.
c. Distinguish both types of factors by example and graphically.
d. Explain how density independent and/or density dependent population growth factors influences the rate of spread for COVID-19 spreads in the human population.
e. (+4 points) Relate the explanation from d to any of the concepts (type of growth model, growth rate equation, per capita v. instantaneous growth rate, carrying capacity, peaks (highest) growth in the population, etc.)

1. Explain how and models are used in ecology then explain how/why the population growth models are used.

2. In population ecology, two basic models are used: the exponential population growth model and the logistic population growth model, distinguish (compare/contrast) between the exponential and logistic growth models.

3. Both the exponential and logistic population growth models are represented by an equation and a graph (figure). Draw the models by hand. Describe the shape of the curve with the underlying factors that give rise to the curve and make clear where those factors take place (location) on the graph.

4. In the context of the exponential and logistic growth models,
a. explain the symbols (?N/?t) and dN/dt.
b. draw both the exponential and logistic growth curves and show both (?N/?t) and dN/dt on the curves
c. explain what the symbols tell you
d. explain how you would use the symbol in solving a population growth model problem.

5. Growth rate is an important element to populations.
a. Discuss the concept of growth rate
b. On both the exponential and logistic models from question 3, label where the growth rate is greater than (>), less than (<), or equal (=) to zero on a graph of both the exponential and logistic growth curves.
c. Explain why the growth rate is greater than (>), less than (<), or equal (=) to zero at that particular location on both of the graphs.
d. identify where per capital growth rate is the highest then support your answers.
e. identify where the instantaneous growth rate is the highest then support your answers.

6. Population size can be controlled by one of two factors: density independent and density dependent population control factors. This is one big essay; do not label a-e in your responses instead answer clearly in the paragraph (s).
a. Define both factors
b. Explain how these factors regulate population sizes.
c. Distinguish both types of factors by example and graphically.
d. Explain how density independent and/or density dependent population growth factors influences the rate of spread for COVID-19 spreads in the human population.
e. (+4 points) Relate the explanation from d to any of the concepts (type of growth model, growth rate equation, per capita v. instantaneous growth rate, carrying capacity, peaks (highest) growth in the population, etc.)

Added by Jose Manuel E.

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