Chapter 47: Q 7. (page 1400)
The number of currently described species on the planet
is about ________.
a. 17,000
b. 150,000
c. 1.5 million
d. 10 million
Short Answer
The correct option is (c).
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Chapter 47: Q 7. (page 1400)
The number of currently described species on the planet
is about ________.
a. 17,000
b. 150,000
c. 1.5 million
d. 10 million
The correct option is (c).
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The Svalbard Global Seed Vault is located on
Spitsbergen island in Norway, which has an arctic
climate. Why might an arctic climate be good for seed
storage?
Explain what extinction threats a frog living on a mountainside in Costa Rica might face.
Pollination is an example of ________.
a. a possible source of new drugs
b. chemical diversity
c. an ecosystem service
d. crop pest control
About what percentage of land on the planet is set aside
as a preserve of some type?
a. 1 percent
b. 6 percent
c. 11 percent
d. 15 percent
What is an ecosystem service that performs the same function as a pesticide?
a. pollination
b. secondary plant compounds
c. crop diversity
d. predators of pests
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