Vocabulary
Carving the large ecosystem into small parcels increases the number of edges
Habitat Fragmentation
Edge effects refer to the different conditions found at the boundaries of ecosystems.
A. True
B. False
True
Which factor increases the consumption of natural resources?
A) Decrease in population
B) Development and industrialization of countries
C) Reduced standard of living
D) Recycling resources
B) Development and industrialization of countries
Scientists believe that extinction rates today are approximately 10 times higher than the background extinction rate.
A. True
B. False
B. False
For an area to be considered a biodiversity hot spot, it must have lost at least 70% of its original habitat.
A. True
B. False
A. True
The gradual process of species becoming extinct
Background Extinction
Which of the following is NOT a cause of background extinction?
A) Activity of other organisms
B) Climate changes
C) Loss of food resources
D) Natural disasters
C) Loss of food resources
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What is “Sustainable Use”?
A) Using resources without any limits
B) Recycling resources indefinitely
C) Using resources at a rate that allows them to be replaced or recycled
D) Stopping the use of resources altogether
C) Using resources at a rate that allows them to be replaced or recycled
The use of living organisms, such as prokaryotes, fungi or plants to detoxify a polluted area
Bioremediation
Which of the following best describes a keystone species?
A) A species that can adapt to any environment
B) A species that plays a large role in an ecosystem
C) A species that travels between different habitats
D) A species that lives on the edge of a habitat
B) A species that plays a large role in an ecosystem
To qualify as a biodiversity hot spot, a region must contain at least:
A) 500 species of vascular plants
B) 1000 species of endemic plants
C) 1500 species of vascular plants
D) 2000 species of animals
C) 1500 species of vascular plants
Fragmentation of habitats leads to which of the following issues?
A) Increased genetic diversity
B) Reduced genetic diversity
C) Increase in food resources
D None of the above
B) Reduced genetic diversity
Biological augmentation involves:
A) Introducing harmful species into ecosystems
B) Removing all predators from an ecosystem
C) Introducing chemicals to prevent plant growth
D) Introducing species that act as predators to balance ecosystems
D) Introducing species that act as predators to balance ecosystems
The increasing concentration of toxic substances in organisms as trophic levels increase in a food chain or food web
Biological Magnification
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Which of the following statements about bioremediation is correct?
A) It uses animals to destroy polluted areas.
B) It involves using plants and fungi to detoxify areas.
C) It removes animals from ecosystems.
D) It decreases biodiversity.
B) It involves using plants and fungi to detoxify areas.
Please explain how Acid Rain is formed
Sulfur Dioxide & Nitrogen Oxide is released into the atmosphere.
These compounds mix with water & other substances in the air to form sulfuric acid & nitric acid
Because of the rising human population growth & an increased rate of consumption of natural resources, please explain why a long-term plan for the use & conservation of natural resources is important
Answers may vary
Destroys underwater habitats for fish & other species when fertilizers, animal waste, sewage or other substances rich in nitrogen & phosphorus flow into waterways causing extensive alae growth
Eutrophication
Describe what is meant by “fragmentation of habitat” and explain how it affects genetic diversity.
Dividing a large habitat into smaller pieces. With a smaller area for species to grow in numbers/evolve as a species the genetic diversity decreases.
Explain why an increase in human population and industrialization impacts natural resource consumption. Give one example.
As the human population goes up more space is needed & city life can contribute to pollution. This can cause things like habitat disruption/habitat destruction which will result in a decrease the natural resources as water, food & shelter
Please give 2 examples of the term “Overexploitation” within our Biosphere
Answers may vary
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