Biology 47 Conservation Biology Biodiversity MCQ


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Photo depicts Earth from space.
This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

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.

Unit 8. Ecology

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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Biology 47 Conservation Biology Biodiversity
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Sample Questions from the Biology 47 Conservation Biology Biodiversity MCQ Quiz

Question: Pollination is an example of ________.


a possible source of new drugs

chemical diversity

an ecosystem service

crop pest control

Question: Exotic species are especially threatening to what kind of ecosystem?



marine Conservation Biology and Biodiversity


tropical forests

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?



10, 000

100, 000

1, 000, 000

Question: What was the name of the first international agreement on climate change?


Red List

Montreal Protocol

International Union for the Conservation of Nature (IUCN)

Kyoto Protocol

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?


Red List

Migratory Bird Act


Endangered Species Act (ESA)

Question: The number of currently described species on the planet is about ________.




1.5 million

10 million

Question: What is an ecosystem service that performs the same function as a pesticide?



secondary plant compounds

crop diversity

predators of pests

Question: A mass extinction is defined as ________.


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?


a new crop variety

a new drug

a soil nutrient

a pest of a crop pest

Question: An adaptive radiation is________.


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?


climate change and exotic species introduction

habitat loss and overharvesting

overharvesting and exotic species introduction

habitat loss and climate change

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