Biology 44 Ecology and the Biosphere 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 44: Ecology and the Biosphere MCQ Multiple Choices Questions Quiz Test Bank

44.1 The Scope of Ecology

44.2 Biogeography

44.3 Terrestrial Biomes

44.4 Aquatic Biomes

44.5 Climate and the Effects of Global Climate Change

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Biology 44 Ecology and the Biosphere MCQ
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Sample Questions from the Biology 44 Ecology and the Biosphere MCQ Quiz

Question: The study of nutrient cycling though the environment is an example of which of the following?


organismal ecology

population ecology

community ecology

ecosystem ecology

Question: Which of the following is an example of a weather event?


The hurricane season lasts from June 1 through November 30.

The amount of atmospheric CO2 has steadily increased during the last century.

A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999.

Deserts are generally dry ecosystems having very little rainfall.

Question: Which of the following is a biotic factor?



disease-causing microbe


soil particle size

Question: Understory plants in a temperate forest have adaptations to capture limited ________.






Question: Which of the following biomes is characterized by abundant water resources?



boreal forests


tropical wet forests

Question: Where would you expect to find the most photosynthesis in an ocean biome?


aphotic zone

abyssal zone

benthic realm

intertidal zone

Question: A key feature of estuaries is:


low light conditions and high productivity

salt water and fresh water

frequent algal blooms

little or no vegetation

Question: Which of the following natural forces is responsible for the release of carbon dioxide and other atmospheric gases?


the Milankovitch cycles


solar intensity

burning of fossil fuels

Question: An ecologist hiking up a mountain may notice different biomes along the way due to changes in all of the following except:






Question: Which of the following biomes is characterized by short growing seasons?



tropical wet forests

Arctic tundras


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