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1.1 The study of life Read Online
Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.
Chapter 47: Conservation Biology and Biodiversity MCQ Multiple Choices Questions Quiz Test Bank
47.1 The Biodiversity Crisis
47.2 The Importance of Biodiversity to Human Life
47.3 Threats to Biodiversity
47.4 Preserving Biodiversity
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Question: Certain parrot species cannot be brought to the United States to be sold as pets. What is the name of the legislation that makes this illegal?
Choices:
Red List
Migratory Bird Act
CITES
Endangered Species Act (ESA)
Question: Exotic species are especially threatening to what kind of ecosystem?
Choices:
deserts
marine Conservation Biology and Biodiversity
islands
tropical forests
Question: What was the name of the first international agreement on climate change?
Choices:
Red List
Montreal Protocol
International Union for the Conservation of Nature (IUCN)
Kyoto Protocol
Question: An adaptive radiation is________.
Choices:
a burst of speciation
a healthy level of UV radiation
a hypothesized cause of a mass extinction
evidence of an asteroid impact
Question: Which two extinction risks may be a direct result of the pet trade?
Choices:
climate change and exotic species introduction
habitat loss and overharvesting
overharvesting and exotic species introduction
habitat loss and climate change
Question: With an extinction rate of 100 E/MSY and an estimated 10 million species, how many extinctions are expected to occur in a century?
Choices:
100
10, 000
100, 000
1, 000, 000
Question: Pollination is an example of ________.
Choices:
a possible source of new drugs
chemical diversity
an ecosystem service
crop pest control
Question: The number of currently described species on the planet is about ________.
Choices:
17,000
150,000
1.5 million
10 million
Question: What is an ecosystem service that performs the same function as a pesticide?
Choices:
pollination
secondary plant compounds
crop diversity
predators of pests
Question: A mass extinction is defined as ________.
Choices:
a loss of 95 percent of species
an asteroid impact
a boundary between geological periods
a loss of 50 percent of species
Question: A secondary plant compound might be used for which of the following?
Choices:
a new crop variety
a new drug
a soil nutrient
a pest of a crop pest
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