1.The ................. of an adult sea star, a type of echinoderm, is on the upper surface of the animal. When a sea star is resting on the sea floor, its ...................aces the sea floor. 2.Technically, short-day plants flower when the _______ period _______ a critical period

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter30: An Introduction To Animal Diversity
Section: Chapter Questions
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1.The ................. of an adult sea star, a type of echinoderm, is on the upper surface of the animal. When a sea star is resting on the sea floor, its ...................aces the sea floor.

2.Technically, short-day plants flower when the _______ period _______ a critical period.

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