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
Download Biology 44 Ecology Quiz PDF eBook
10 Pages
2015
English US
Educational Materials



Source:  OpenStax College. Download for free at http://cnx.org/content/col16448/latest/
Michael Sag
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Rachel Carlisle
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