Biology 28 Invertebrates 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 5. Biological Diversity

Chapter 28: Invertebrates MCQ Multiple Choices Questions Quiz Test Bank

28.1 Phylum Porifera

28.2 Phylum Cnidaria

28.3 Superphylum Lophotrochozoa

28.4 Superphylum Ecdysozoa

28.5 Superphylum Deuterostomia

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Biology 28 Invertebrates MCQ
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