AP® Free-Response Practice 1. A scientist observes a pond located adjacent to a golf course and observes a thick mat of algae covering approximately half of the surface. The banks of the pond allow rain and snowmelt to enter the pond from the golf course property and there are emergent plants such as cattails growing around the perimeter. The scientist decides to run sev-v eral water-quality tests to gather data. The results appear in the table to the right. (a) Based on the data shown, design an experiment that tests the relationship of a factor directly related to the growth of the algae. (i) State a hypothesis that will test the possible cause of the algal bloom. (ii) Describe the procedure that will test the hypothesis. (iii) Identify the control in the experiment. (iv) Identify the dependent variable. (v) Discuss the expected results of this experiment. (b) There are many causes of cultural eutrophication. Dissolved oxygen 4 mL/L 6.4 0.01 ml/L 0.01 mL/L 0 mL/L pH Nitrate Phosphate Total chlorine (i) Identify TWO possible sources of cultural eutrophication. vix con (ii) Describe the sequence of events that takes place during this process, ultimately resulting in a shift in species in a pond or lake. (c) Organisms that live in estuaries (marine wetlands) are well adapted to rapidly changing environmental conditions. (i) Identify and describe TWO characteristics of estuaries to which organisms must adapt. (ii) Identify ONE economic benefit of estuaries.
AP® Free-Response Practice 1. A scientist observes a pond located adjacent to a golf course and observes a thick mat of algae covering approximately half of the surface. The banks of the pond allow rain and snowmelt to enter the pond from the golf course property and there are emergent plants such as cattails growing around the perimeter. The scientist decides to run sev-v eral water-quality tests to gather data. The results appear in the table to the right. (a) Based on the data shown, design an experiment that tests the relationship of a factor directly related to the growth of the algae. (i) State a hypothesis that will test the possible cause of the algal bloom. (ii) Describe the procedure that will test the hypothesis. (iii) Identify the control in the experiment. (iv) Identify the dependent variable. (v) Discuss the expected results of this experiment. (b) There are many causes of cultural eutrophication. Dissolved oxygen 4 mL/L 6.4 0.01 ml/L 0.01 mL/L 0 mL/L pH Nitrate Phosphate Total chlorine (i) Identify TWO possible sources of cultural eutrophication. vix con (ii) Describe the sequence of events that takes place during this process, ultimately resulting in a shift in species in a pond or lake. (c) Organisms that live in estuaries (marine wetlands) are well adapted to rapidly changing environmental conditions. (i) Identify and describe TWO characteristics of estuaries to which organisms must adapt. (ii) Identify ONE economic benefit of estuaries.
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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Transcribed Image Text:**AP® Free-Response Practice**
1. A scientist observes a pond located adjacent to a golf course and observes a thick mat of algae covering approximately half of the surface. The banks of the pond allow rain and snowmelt to enter the pond from the golf course property and there are emergent plants such as cattails growing around the perimeter. The scientist decides to run several water-quality tests to gather data. The results appear in the table to the right.
**Data Table:**
- Dissolved oxygen: 4 mL/L
- pH: 6.4
- Nitrate: 0.01 mL/L
- Phosphate: 0.01 mL/L
- Total chlorine: 0 mL/L
**(a)** Based on the data shown, design an experiment that tests the relationship of a factor directly related to the growth of the algae.
- **(i)** State a hypothesis that will test the possible cause of the algal bloom.
- **(ii)** Describe the procedure that will test the hypothesis.
- **(iii)** Identify the control in the experiment.
- **(iv)** Identify the dependent variable.
- **(v)** Discuss the expected results of this experiment.
**(b)** There are many causes of cultural eutrophication.
- **(i)** Identify TWO possible sources of cultural eutrophication.
- **(ii)** Describe the sequence of events that takes place during this process, ultimately resulting in a shift in species in a pond or lake.
**(c)** Organisms that live in estuaries (marine wetlands) are well adapted to rapidly changing environmental conditions.
- **(i)** Identify and describe TWO characteristics of estuaries to which organisms must adapt.
- **(ii)** Identify ONE economic benefit of estuaries.
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