Xylen in gymnosperms is devoid of

Amphioxus is devoid of

Amphioxus is devoid of

Amphioxus is devoid of

Flatworms are devoid of

Leaves are devoid of

Leaves are devoid of

The difference between xylem of angiosperms and gymnosperms is that, in gymnosperms is that, in gymnosperms

The blind spot is devoid of