#### Answer

d.

#### Work Step by Step

Options a., b., and c. are incorrect. Gymnosperms have vascular tissues, "naked" seeds, and cones.
Option d. is correct. Gymnosperms do not have flowers. Flowers are characteristics of angiosperms.

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Published by
Prentice Hall

ISBN 10:
9780133669510

ISBN 13:
978-0-13366-951-0

d.

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