Question 242 pts
Recent studies have found that chemicals extracted from reef sponges have "antibacterial, antiviral, antifungal, antimalarial, antitumor, immunosuppressive, and cardiovascular activity."
An argument to conserve the coral reef because of the possibility of finding new useful drugs from reef sponges in the future would be:
Direct use value
Amenity value
Option value
Existence value
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Question 252 pts
Global estimates of species richness are likely to be best for which of the below taxa?
Flowering plants and fungi
Frogs and insects
Crustaceans and fungi
Birds and flowering plants
Fungi and insects
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Question 262 pts
Which of the below is TRUE regarding desertification?
It is likely to happen in any type of climate
It produces rich desert ecosystems
It is not usually impacted by droughts or climate change
It can happen as a result of non-sustainable agriculture
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Question 272 pts
What is true about human use of the Tropical Dry Forest biome versus the Tropical Rainforest biome?
Rain forest tends to have richer soils than dry forest, so it has been cleared at a higher rate than dry forest
Much less tropical rain forest remains than tropical dry forest
Rain forest is best suited for agriculture, so has been destroyed to a greater degree
Dry forest is best suited for agriculture, so has been destroyed to a greater degree
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Question 282 pts
Which of the below is true about Brazil's Araucaria trees?
They are one of the dominant trees in the Brazilian Amazon
They were once Brazil's leading export, but are now almost completely gone
They have made a tremendous recovery due to government conservation efforts, and are now one of the big conservation success stories in South America
They are still very common, but are threatened with increasing harvesting for timber
Will rate when all are answered.
Question 242 pts
Recent studies have found that chemicals extracted from reef sponges have "antibacterial, antiviral, antifungal, antimalarial, antitumor, immunosuppressive, and cardiovascular activity."
An argument to conserve the coral reef because of the possibility of finding new useful drugs from reef sponges in the future would be:
| Direct use value |
| Amenity value |
| Option value |
| Existence value |
Flag this Question
Question 252 pts
Global estimates of species richness are likely to be best for which of the below taxa?
| Flowering plants and fungi |
| Frogs and insects |
| Crustaceans and fungi |
| Birds and flowering plants |
| Fungi and insects |
Flag this Question
Question 262 pts
Which of the below is TRUE regarding desertification?
| It is likely to happen in any type of climate |
| It produces rich desert ecosystems |
| It is not usually impacted by droughts or climate change |
| It can happen as a result of non-sustainable agriculture |
Flag this Question
Question 272 pts
What is true about human use of the Tropical Dry Forest biome versus the Tropical Rainforest biome?
| Rain forest tends to have richer soils than dry forest, so it has been cleared at a higher rate than dry forest |
| Much less tropical rain forest remains than tropical dry forest |
| Rain forest is best suited for agriculture, so has been destroyed to a greater degree |
| Dry forest is best suited for agriculture, so has been destroyed to a greater degree |
Flag this Question
Question 282 pts
Which of the below is true about Brazil's Araucaria trees?
| They are one of the dominant trees in the Brazilian Amazon |
| They were once Brazil's leading export, but are now almost completely gone |
| They have made a tremendous recovery due to government conservation efforts, and are now one of the big conservation success stories in South America |
| They are still very common, but are threatened with increasing harvesting for timber |
Will rate when all are answered.
