Homework Help is Here – Start Your Trial Now!
Science
Biology
1. Read the excerpt below and answer the questions that follow. Native species of North America are often defined as those species that were present in North America before Europeans arrived in the early 1600s. When Europeans arrived, they found extensive forests dominated by the American chestnut tree. These chestnut trees were ex- tensively cultivated and planted by the North American natives for food and other wood products. In the early 1900s, the chestnut blight (a fungus) virtually extermi- nated all of the American chestnut trees in North America. (a) Classify the American chestnut tree as either a native or an introduced species. Explain your classification. (b) Classify the chestnut blight as either a native or an introduced species. Explain your classification. (c) The introduction of invasive species can be deliberate or accidental. (i) Identify TWO characteristics of an invasive species. (ii) Identify which of the species (American chestnut or chestnut blight) is considered invasive.

1. Read the excerpt below and answer the questions that follow. Native species of North America are often defined as those species that were present in North America before Europeans arrived in the early 1600s. When Europeans arrived, they found extensive forests dominated by the American chestnut tree. These chestnut trees were ex- tensively cultivated and planted by the North American natives for food and other wood products. In the early 1900s, the chestnut blight (a fungus) virtually extermi- nated all of the American chestnut trees in North America. (a) Classify the American chestnut tree as either a native or an introduced species. Explain your classification. (b) Classify the chestnut blight as either a native or an introduced species. Explain your classification. (c) The introduction of invasive species can be deliberate or accidental. (i) Identify TWO characteristics of an invasive species. (ii) Identify which of the species (American chestnut or chestnut blight) is considered invasive.

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,...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question
Answer Part A: sub parts a-c
AP FREE-RESPONSE PRACTICE 1. Read the excerpt below and answer the questions that follow. Native species of North America are often defined as those species that were present in North America before Europeans arrived in the early 1600s. When Europeans arrived, they found extensive forests dominated by the American chestnut tree. These chestnut trees were ex- tensively cultivated and planted by the North American natives for food and other wood products. In the early 1900s, the chestnut blight (a fungus) virtually extermi- nated all of the American chestnut trees in North America. (a) Classify the American chestnut tree as either a native or an introduced species. Explain your classification. (b) Classify the chestnut blight as either a native or an introduced species. Explain your classification. (c) The introduction of invasive species can be deliberate or accidental. (i) Identify TWO characteristics of an invasive species. (ii) Identify which of the species (American chestnut or chestnut blight) is considered invasive. (d) Many non-native game animals, for example, axis deer and blackbuck antelope, were deliberately introduced to the United States for the sport hunting industry. (i) Describe ONE ecological and ONE economic advantage of the introduction of game species. (ii) Describe ONE ecological and ONE economic disadvantage of the introduction of game species. 2. Energy flow is a central theme throughout the study of environmental science. Consider energy flow when answer- ing the following questions: (a) The tundra/arctic biome is populated with lichens and grasses as dominant producers, small rodents called lemmings, brown bears (grizzlies), caribou (deer family), and arctic wolves. Diagram a food web that correctly shows the flow of energy through the species shown in the squares below. Lichens Arctic wolves Brown bears Caribou Lemmings Grasses (b) The tundra, like most biomes, has very few large predators that function at the highest levels of the trophic pyramid. Explain this phenomenon. (c) An ecologist is doing an in-depth study of a tundra ecosystem. He does a biomass sample of the producers in an area and measures 3.5 kilograms of producer biomass per square meter. Calculate the biomass of pro- ducers in terms of kilograms per hectare (kg/ha). A hectare contains 10,000 square meters. (d) Based on your calculation of kg/ha above: (i) Calculate the approximate biomass of both primary and secondary consumers that could be maintained in one hectare of this ecosystem. (ii) Explain your calculation. (e) Many people suggest that it would be wiser for humans to eat lower on the trophic pyramid. Discuss this statement in terms of both energy availability and land use. AP REVIEW QUESTIONS UNIT 2 233
Transcribed Image Text:AP FREE-RESPONSE PRACTICE 1. Read the excerpt below and answer the questions that follow. Native species of North America are often defined as those species that were present in North America before Europeans arrived in the early 1600s. When Europeans arrived, they found extensive forests dominated by the American chestnut tree. These chestnut trees were ex- tensively cultivated and planted by the North American natives for food and other wood products. In the early 1900s, the chestnut blight (a fungus) virtually extermi- nated all of the American chestnut trees in North America. (a) Classify the American chestnut tree as either a native or an introduced species. Explain your classification. (b) Classify the chestnut blight as either a native or an introduced species. Explain your classification. (c) The introduction of invasive species can be deliberate or accidental. (i) Identify TWO characteristics of an invasive species. (ii) Identify which of the species (American chestnut or chestnut blight) is considered invasive. (d) Many non-native game animals, for example, axis deer and blackbuck antelope, were deliberately introduced to the United States for the sport hunting industry. (i) Describe ONE ecological and ONE economic advantage of the introduction of game species. (ii) Describe ONE ecological and ONE economic disadvantage of the introduction of game species. 2. Energy flow is a central theme throughout the study of environmental science. Consider energy flow when answer- ing the following questions: (a) The tundra/arctic biome is populated with lichens and grasses as dominant producers, small rodents called lemmings, brown bears (grizzlies), caribou (deer family), and arctic wolves. Diagram a food web that correctly shows the flow of energy through the species shown in the squares below. Lichens Arctic wolves Brown bears Caribou Lemmings Grasses (b) The tundra, like most biomes, has very few large predators that function at the highest levels of the trophic pyramid. Explain this phenomenon. (c) An ecologist is doing an in-depth study of a tundra ecosystem. He does a biomass sample of the producers in an area and measures 3.5 kilograms of producer biomass per square meter. Calculate the biomass of pro- ducers in terms of kilograms per hectare (kg/ha). A hectare contains 10,000 square meters. (d) Based on your calculation of kg/ha above: (i) Calculate the approximate biomass of both primary and secondary consumers that could be maintained in one hectare of this ecosystem. (ii) Explain your calculation. (e) Many people suggest that it would be wiser for humans to eat lower on the trophic pyramid. Discuss this statement in terms of both energy availability and land use. AP REVIEW QUESTIONS UNIT 2 233
Expert Solution
steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Biogeography
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS