Exam 22: Introduction to Seed Plants: Gymnosperms

Gymnosperms generally have broad leathery leaves.

Giant redwoods are easily damaged in forest fires because of their thin bark.

The xylem of conifers generally contains no vessels or fibers.

Most gymnosperms are wind pollinated. The exception is the ________, where pollen is transferred from microsporangiate strobili to megasporangiate strobili by beetles.

Two of the original four cells in a pine pollen grain enter a pollen tube; one of these two, which after division eventually gives rise to sperms, is the

Which of the following is common to both cycads and pines?

Early explorers in North America found numbers of pines stripped of their bark by Native Americans. The primary reason Native Americans did this was