<em>Gingko biloba and ferns are examples of seed plants with flagellated sperms.
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<u>Explanation:</u>
Flagellated sperm reminds the origin of life in <em>water and flagellated sperms </em>was an adaptation to enable sperm movement in water. After several <em>phases of evolution flagellated sperm</em> feature is rarely found in plants.
Infact all of the angiosperms and a large population of gymnosperms lack flagellated sperm. <em>Gingko biloba</em> is a gymnosperm found in China and is the last remaining <em>species of the division Gingkophyta.</em>
It grows up to a height of 20-35 meters and is well known for its medicinal properties. Ferns have <em>flagellated sperm</em> and it is a sign that ferns have been existing on the earth before many long years.
