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What is an adaptive radiation? A. a kind of mutation caused by radiation B. a cluster of similar adaptations in a species C. a rapid increase in the number of related species D. an organism that is capable of producing radiation
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Asked 4/23/2014 8:40:35 AM
Updated 9/28/2014 9:53:47 PM
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This answer has been confirmed as correct and helpful.
Edited by jeifunk [9/28/2014 9:53:46 PM], Confirmed by jeifunk [9/28/2014 9:53:47 PM]
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User: What is an adaptive radiation? A. a kind of mutation caused by radiation B. a cluster of similar adaptations in a species C. a rapid increase in the number of related species D. an organism that is capable of producing radiation

Weegy: An adaptive radiation is a rapid increase in the number of related species.
justpretty|Points 1771|

User: What is a trait that is ancestral to all chordates? A. a jaw bone B. a notochord C. an amniotic egg D. a vertebral column

Question
Asked 4/23/2014 8:40:35 AM
Updated 9/28/2014 9:53:47 PM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by jeifunk [9/28/2014 9:53:46 PM], Confirmed by jeifunk [9/28/2014 9:53:47 PM]
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Notochord is a trait that is ancestral to all chordates.

Added 9/28/2014 6:09:15 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/28/2014 9:53:21 PM]
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Which is a function of the plant cell wall? A. It keeps the cell dry. B. It gives the cell its color. C. It prevents the cell from bursting. D. It holds the cell in its proper position.
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